feat: 基础框架搭建完毕

internal/adminui/dist/.keep

@@ -0,0 +1 @@
+Build apps/admin to populate this directory before building the release binary.

internal/adminui/handler.go

@@ -0,0 +1,55 @@
+// Package adminui serves the compiled management console from the API binary.
+package adminui
+
+import (
+	"embed"
+	"io/fs"
+	"net/http"
+	"path"
+	"strings"
+)
+
+//go:embed all:dist
+var assets embed.FS
+
+func Handler() http.Handler {
+	root, _ := fs.Sub(assets, "dist")
+	files := http.FileServer(http.FS(root))
+	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		if r.Method != http.MethodGet && r.Method != http.MethodHead {
+			w.Header().Set("Allow", "GET, HEAD")
+			http.Error(w, "Method not allowed", http.StatusMethodNotAllowed)
+			return
+		}
+		name := strings.TrimPrefix(path.Clean("/"+r.URL.Path), "/")
+		if strings.HasPrefix(name, ".") || strings.Contains(name, "/.") {
+			http.NotFound(w, r)
+			return
+		}
+		if _, err := fs.Stat(root, "index.html"); err != nil {
+			http.Error(w, "Management console not built. Run make admin-build, then rebuild the API.", http.StatusServiceUnavailable)
+			return
+		}
+		if name != "" && name != "." {
+			if info, err := fs.Stat(root, name); err == nil && !info.IsDir() {
+				files.ServeHTTP(w, r)
+				return
+			}
+		}
+		if path.Ext(name) != "" || strings.HasPrefix(name, "assets/") {
+			http.NotFound(w, r)
+			return
+		}
+		index, err := fs.ReadFile(root, "index.html")
+		if err != nil {
+			http.Error(w, "Management console unavailable", http.StatusServiceUnavailable)
+			return
+		}
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		w.Header().Set("Cache-Control", "no-cache")
+		w.WriteHeader(http.StatusOK)
+		if r.Method != http.MethodHead {
+			_, _ = w.Write(index)
+		}
+	})
+}

internal/apperror/errors.go

@@ -0,0 +1,13 @@
+// Package apperror defines safe application errors shared across module boundaries.
+package apperror
+
+import "errors"
+
+var (
+	ErrInvalidInput    = errors.New("invalid input")
+	ErrUnauthenticated = errors.New("authentication required")
+	ErrForbidden       = errors.New("permission denied")
+	ErrConflict        = errors.New("already exists")
+	ErrNotFound        = errors.New("not found")
+	ErrUnavailable     = errors.New("service unavailable")
+)

internal/config/config.go

@@ -0,0 +1,105 @@
+// Package config loads and validates application configuration without logging secrets.
+package config
+
+import (
+	"bufio"
+	"fmt"
+	"net"
+	"net/url"
+	"os"
+	"strconv"
+	"strings"
+)
+
+type Config struct {
+	Environment, HTTPAddr                                                      string
+	PGHost, PGPort, PGDatabase, PGUser, PGPassword, PGSSLMode, PGAdminDatabase string
+	RedisAddr, RedisUsername, RedisPassword                                    string
+	RedisDB                                                                    int
+}
+
+// LoadEnvFile reads literal KEY=VALUE entries. Existing environment values win.
+// It never evaluates shell expressions or prints values.
+func LoadEnvFile(path string) error {
+	f, err := os.Open(path)
+	if err != nil {
+		return fmt.Errorf("open configuration file: %w", err)
+	}
+	defer f.Close()
+	s := bufio.NewScanner(f)
+	for line := 1; s.Scan(); line++ {
+		v := strings.TrimSpace(s.Text())
+		if v == "" || strings.HasPrefix(v, "#") {
+			continue
+		}
+		key, value, ok := strings.Cut(v, "=")
+		key = strings.TrimSpace(key)
+		if !ok || key == "" {
+			return fmt.Errorf("invalid configuration at line %d", line)
+		}
+		for i, r := range key {
+			if !(r == '_' || r >= 'A' && r <= 'Z' || r >= 'a' && r <= 'z' || i > 0 && r >= '0' && r <= '9') {
+				return fmt.Errorf("invalid key at line %d", line)
+			}
+		}
+		value = strings.TrimSpace(value)
+		if len(value) >= 2 && (value[0] == '\'' && value[len(value)-1] == '\'' || value[0] == '"' && value[len(value)-1] == '"') {
+			value = value[1 : len(value)-1]
+		}
+		if _, exists := os.LookupEnv(key); !exists {
+			if err := os.Setenv(key, value); err != nil {
+				return fmt.Errorf("set configuration at line %d: %w", line, err)
+			}
+		}
+	}
+	return s.Err()
+}
+
+func Load() (Config, error) {
+	c := Config{Environment: env("APP_ENV", "local"), HTTPAddr: env("HTTP_ADDR", "127.0.0.1:8080"), PGHost: env("PGHOST", "192.168.100.127"), PGPort: env("PGPORT", "5432"), PGDatabase: env("PGDATABASE", "veyra"), PGUser: os.Getenv("PGUSER"), PGPassword: os.Getenv("PGPASSWORD"), PGSSLMode: env("PGSSLMODE", "disable"), PGAdminDatabase: env("PGADMIN_DATABASE", "postgres"), RedisAddr: env("REDIS_ADDR", "192.168.100.127:6379"), RedisUsername: os.Getenv("REDIS_USERNAME"), RedisPassword: os.Getenv("REDIS_PASSWORD")}
+	var err error
+	c.RedisDB, err = strconv.Atoi(env("REDIS_DB", "0"))
+	if err != nil || c.RedisDB < 0 {
+		return Config{}, fmt.Errorf("REDIS_DB must be a nonnegative integer")
+	}
+	port, err := strconv.Atoi(c.PGPort)
+	if err != nil || port < 1 || port > 65535 {
+		return Config{}, fmt.Errorf("PGPORT must be a valid port")
+	}
+	if _, _, err := net.SplitHostPort(c.HTTPAddr); err != nil {
+		return Config{}, fmt.Errorf("invalid HTTP_ADDR")
+	}
+	if _, _, err := net.SplitHostPort(c.RedisAddr); err != nil {
+		return Config{}, fmt.Errorf("invalid REDIS_ADDR")
+	}
+	switch c.PGSSLMode {
+	case "disable", "allow", "prefer", "require", "verify-ca", "verify-full":
+	default:
+		return Config{}, fmt.Errorf("invalid PGSSLMODE")
+	}
+	return c, nil
+}
+
+func (c Config) ValidateDatabase() error {
+	if c.PGUser == "" {
+		return fmt.Errorf("PGUSER is required; configure the local .env file")
+	}
+	if c.PGHost == "" || c.PGDatabase == "" || c.PGAdminDatabase == "" {
+		return fmt.Errorf("database host and names are required")
+	}
+	return nil
+}
+
+func (c Config) DatabaseURL(database string) string {
+	u := url.URL{Scheme: "postgres", Host: net.JoinHostPort(c.PGHost, c.PGPort), User: url.UserPassword(c.PGUser, c.PGPassword), Path: "/" + database}
+	q := url.Values{"sslmode": {c.PGSSLMode}, "connect_timeout": {"5"}}
+	u.RawQuery = q.Encode()
+	return u.String()
+}
+
+func env(key, fallback string) string {
+	if v := os.Getenv(key); v != "" {
+		return v
+	}
+	return fallback
+}

internal/config/config_test.go

@@ -0,0 +1,25 @@
+package config
+
+import (
+	"net/url"
+	"testing"
+)
+
+func TestDatabaseURLPreservesCredentials(t *testing.T) {
+	c := Config{PGHost: "192.168.100.127", PGPort: "5432", PGUser: "user@name", PGPassword: "p@ss:/?#&", PGSSLMode: "require"}
+	u, err := url.Parse(c.DatabaseURL("veyra"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	password, _ := u.User.Password()
+	if password != c.PGPassword || u.User.Username() != c.PGUser || u.Path != "/veyra" || u.Query().Get("sslmode") != "require" {
+		t.Fatal("connection URL changed configuration values")
+	}
+}
+
+func TestRejectInvalidRedisDB(t *testing.T) {
+	t.Setenv("REDIS_DB", "-1")
+	if _, err := Load(); err == nil {
+		t.Fatal("negative database must be rejected")
+	}
+}

internal/database/database.go

@@ -0,0 +1,112 @@
+package database
+
+import (
+	"context"
+	"crypto/sha256"
+	"embed"
+	"fmt"
+	"sort"
+
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/config"
+)
+
+//go:embed migrations/*.sql
+var migrations embed.FS
+
+func Open(ctx context.Context, c config.Config) (*pgxpool.Pool, error) {
+	if err := c.ValidateDatabase(); err != nil {
+		return nil, err
+	}
+	p, err := pgxpool.New(ctx, c.DatabaseURL(c.PGDatabase))
+	if err != nil {
+		return nil, fmt.Errorf("configure PostgreSQL pool")
+	}
+	if err := p.Ping(ctx); err != nil {
+		p.Close()
+		return nil, fmt.Errorf("PostgreSQL connection unavailable")
+	}
+	return p, nil
+}
+
+// Create creates only the configured database and never drops or resets data.
+func Create(ctx context.Context, c config.Config) (bool, error) {
+	if err := c.ValidateDatabase(); err != nil {
+		return false, err
+	}
+	conn, err := pgx.Connect(ctx, c.DatabaseURL(c.PGAdminDatabase))
+	if err != nil {
+		return false, fmt.Errorf("administrative PostgreSQL connection unavailable")
+	}
+	defer conn.Close(context.Background())
+	if _, err := conn.Exec(ctx, "SELECT pg_advisory_lock(hashtext($1)::bigint)", "veyra:create:"+c.PGDatabase); err != nil {
+		return false, fmt.Errorf("lock database creation: %w", err)
+	}
+	var exists bool
+	if err := conn.QueryRow(ctx, "SELECT EXISTS(SELECT 1 FROM pg_database WHERE datname = $1)", c.PGDatabase).Scan(&exists); err != nil {
+		return false, fmt.Errorf("inspect database: %w", err)
+	}
+	if exists {
+		return false, nil
+	}
+	if _, err := conn.Exec(ctx, "CREATE DATABASE "+pgx.Identifier{c.PGDatabase}.Sanitize()); err != nil {
+		return false, fmt.Errorf("create database failed; verify role CREATEDB permission")
+	}
+	return true, nil
+}
+
+// Migrate serializes concurrent runners and atomically records each migration.
+// Even the migration ledger follows the veyra_ prefix and string UUID ID rules.
+func Migrate(ctx context.Context, pool *pgxpool.Pool) error {
+	conn, err := pool.Acquire(ctx)
+	if err != nil {
+		return err
+	}
+	defer conn.Release()
+	tx, err := conn.Begin(ctx)
+	if err != nil {
+		return err
+	}
+	defer tx.Rollback(context.Background())
+	if _, err := tx.Exec(ctx, "SELECT pg_advisory_xact_lock(727198321)"); err != nil {
+		return err
+	}
+	if _, err := tx.Exec(ctx, `CREATE TABLE IF NOT EXISTS veyra_schema_migration (
+id varchar(36) PRIMARY KEY CHECK (id ~ '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'),
+version varchar(120) NOT NULL UNIQUE, checksum varchar(64) NOT NULL, applied_at timestamptz NOT NULL DEFAULT now())`); err != nil {
+		return fmt.Errorf("create migration ledger: %w", err)
+	}
+	entries, err := migrations.ReadDir("migrations")
+	if err != nil {
+		return err
+	}
+	sort.Slice(entries, func(i, j int) bool { return entries[i].Name() < entries[j].Name() })
+	for _, entry := range entries {
+		sql, err := migrations.ReadFile("migrations/" + entry.Name())
+		if err != nil {
+			return err
+		}
+		checksum := fmt.Sprintf("%x", sha256.Sum256(sql))
+		var stored string
+		err = tx.QueryRow(ctx, "SELECT checksum FROM veyra_schema_migration WHERE version=$1", entry.Name()).Scan(&stored)
+		if err == nil {
+			if stored != checksum {
+				return fmt.Errorf("migration %s checksum mismatch", entry.Name())
+			}
+			continue
+		}
+		if err != pgx.ErrNoRows {
+			return err
+		}
+		if _, err := tx.Exec(ctx, string(sql)); err != nil {
+			return fmt.Errorf("apply %s: %w", entry.Name(), err)
+		}
+		if _, err := tx.Exec(ctx, "INSERT INTO veyra_schema_migration(id,version,checksum) VALUES($1,$2,$3)", uuid.NewString(), entry.Name(), checksum); err != nil {
+			return err
+		}
+	}
+	return tx.Commit(ctx)
+}

internal/database/database_test.go

@@ -0,0 +1,67 @@
+package database
+
+import (
+	"context"
+	"os"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgxpool"
+)
+
+// Integration testing uses a disposable schema on an explicitly provided test database.
+func TestMigrationIntegration(t *testing.T) {
+	dsn := os.Getenv("VEYRA_TEST_DATABASE_URL")
+	if dsn == "" {
+		t.Skip("set VEYRA_TEST_DATABASE_URL to run PostgreSQL integration tests")
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+	admin, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer admin.Close()
+	schema := "veyra_test_" + strings.ReplaceAll(uuid.NewString(), "-", "")
+	if _, err := admin.Exec(ctx, "CREATE SCHEMA "+schema); err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		if _, err := admin.Exec(context.Background(), "DROP SCHEMA "+schema+" CASCADE"); err != nil {
+			t.Error(err)
+		}
+	}()
+	cfg, err := pgxpool.ParseConfig(dsn)
+	if err != nil {
+		t.Fatal(err)
+	}
+	cfg.ConnConfig.RuntimeParams["search_path"] = schema
+	pool, err := pgxpool.NewWithConfig(ctx, cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer pool.Close()
+	for i := 0; i < 2; i++ {
+		if err := Migrate(ctx, pool); err != nil {
+			t.Fatal(err)
+		}
+	}
+	var count int
+	if err := pool.QueryRow(ctx, "SELECT count(*) FROM veyra_schema_migration").Scan(&count); err != nil || count != 2 {
+		t.Fatalf("migration ledger count=%d err=%v", count, err)
+	}
+	if _, err := pool.Exec(ctx, "INSERT INTO veyra_user(id,display_name) VALUES($1,$2)", uuid.NewString(), "Test"); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := pool.Exec(ctx, "INSERT INTO veyra_user(id,display_name) VALUES('invalid','Test')"); err == nil {
+		t.Fatal("invalid UUID was accepted")
+	}
+	if _, err := pool.Exec(ctx, "UPDATE veyra_schema_migration SET checksum='changed'"); err != nil {
+		t.Fatal(err)
+	}
+	if err := Migrate(ctx, pool); err == nil {
+		t.Fatal("modified migration checksum was accepted")
+	}
+}

internal/database/migrations/000001_foundation.sql

@@ -0,0 +1,18 @@
+CREATE TABLE veyra_user (
+    id varchar(36) PRIMARY KEY CHECK (id ~ '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'),
+    display_name varchar(80) NOT NULL CHECK (length(trim(display_name)) > 0),
+    status varchar(16) NOT NULL DEFAULT 'ACTIVE' CHECK (status IN ('ACTIVE', 'DISABLED')),
+    created_at timestamptz NOT NULL DEFAULT now(),
+    updated_at timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE TABLE veyra_account (
+    id varchar(36) PRIMARY KEY CHECK (id ~ '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'),
+    user_id varchar(36) NOT NULL REFERENCES veyra_user(id),
+    mode varchar(16) NOT NULL CHECK (mode IN ('simulation', 'manual_real')),
+    name varchar(80) NOT NULL CHECK (length(trim(name)) > 0),
+    currency varchar(3) NOT NULL DEFAULT 'CNY' CHECK (currency = 'CNY'),
+    created_at timestamptz NOT NULL DEFAULT now(),
+    UNIQUE (user_id, mode)
+);
+CREATE INDEX veyra_account_user_id_idx ON veyra_account(user_id);

internal/database/migrations/000002_identity_account.sql

@@ -0,0 +1,32 @@
+ALTER TABLE veyra_user ADD COLUMN role varchar(16) NOT NULL DEFAULT 'USER' CHECK (role IN ('USER', 'ADMIN'));
+
+CREATE TABLE veyra_credential (
+    id varchar(36) PRIMARY KEY CHECK (id ~ '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'),
+    user_id varchar(36) NOT NULL UNIQUE REFERENCES veyra_user(id),
+    login_name varchar(64) NOT NULL UNIQUE CHECK (login_name ~ '^[a-z0-9_]{3,64}$'),
+    password_hash text NOT NULL,
+    created_at timestamptz NOT NULL DEFAULT now()
+);
+
+CREATE TABLE veyra_session (
+    id varchar(36) PRIMARY KEY CHECK (id ~ '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'),
+    user_id varchar(36) NOT NULL REFERENCES veyra_user(id),
+    token_hash varchar(64) NOT NULL UNIQUE,
+    audience varchar(8) NOT NULL CHECK (audience IN ('app', 'admin')),
+    expires_at timestamptz NOT NULL,
+    revoked_at timestamptz,
+    created_at timestamptz NOT NULL DEFAULT now(),
+    CHECK (expires_at > created_at)
+);
+CREATE INDEX veyra_session_user_id_idx ON veyra_session(user_id);
+
+ALTER TABLE veyra_account ADD COLUMN ledger_status varchar(16) NOT NULL DEFAULT 'INCOMPLETE' CHECK (ledger_status IN ('COMPLETE', 'INCOMPLETE'));
+
+CREATE TABLE veyra_cash_entry (
+    id varchar(36) PRIMARY KEY CHECK (id ~ '^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}$'),
+    account_id varchar(36) NOT NULL REFERENCES veyra_account(id),
+    entry_type varchar(16) NOT NULL CHECK (entry_type IN ('INITIAL')),
+    amount_minor bigint NOT NULL CHECK (amount_minor >= 0 AND amount_minor <= 100000000000),
+    created_at timestamptz NOT NULL DEFAULT now(),
+    UNIQUE (account_id, entry_type)
+);

internal/handler/identity.go

@@ -0,0 +1,252 @@
+package handler
+
+import (
+	"context"
+	"encoding/json"
+	"errors"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"git.sundynix.cn/Blizzard/Veyra/internal/model"
+	"git.sundynix.cn/Blizzard/Veyra/internal/service"
+)
+
+type LoginLimiter interface {
+	Login(context.Context, string, string) (bool, error)
+}
+type IdentityOptions struct {
+	Auth             *service.AuthService
+	Accounts         *service.AccountService
+	Limiter          LoginLimiter
+	DevelopmentLogin bool
+	SecureCookie     bool
+}
+
+const sessionCookie = "veyra_admin_session"
+
+func bindIdentity(r *gin.Engine, options IdentityOptions) {
+	r.SetTrustedProxies(nil)
+	adminAuth := func(c *gin.Context) { authenticate(c, options, "admin") }
+	appAuth := func(c *gin.Context) { authenticate(c, options, "app") }
+	login := func(audience string) gin.HandlerFunc {
+		return func(c *gin.Context) {
+			if !options.DevelopmentLogin {
+				fail(c, apperror.ErrUnavailable)
+				return
+			}
+			if audience == "admin" && !sameOrigin(c.Request) {
+				fail(c, apperror.ErrForbidden)
+				return
+			}
+			var input struct {
+				LoginName string `json:"login_name"`
+				Password  string `json:"password"`
+			}
+			if !decode(c, &input) {
+				return
+			}
+			if len(input.LoginName) > 64 || len(input.Password) > 72 {
+				fail(c, apperror.ErrUnauthenticated)
+				return
+			}
+			if options.Auth == nil || options.Limiter == nil {
+				fail(c, apperror.ErrUnavailable)
+				return
+			}
+			allowed, err := options.Limiter.Login(c.Request.Context(), c.ClientIP(), strings.ToLower(strings.TrimSpace(input.LoginName)))
+			if err != nil {
+				fail(c, apperror.ErrUnavailable)
+				return
+			}
+			if !allowed {
+				c.Header("Retry-After", "900")
+				failure(c, http.StatusTooManyRequests, "RATE_LIMITED", "登录尝试过于频繁，请稍后再试。", true)
+				return
+			}
+			result, err := options.Auth.Login(c.Request.Context(), input.LoginName, input.Password, audience)
+			if err != nil {
+				fail(c, err)
+				return
+			}
+			if audience == "admin" {
+				http.SetCookie(c.Writer, &http.Cookie{Name: sessionCookie, Value: result.Token, Path: "/api/admin", HttpOnly: true, Secure: options.SecureCookie, SameSite: http.SameSiteStrictMode, MaxAge: 8 * 60 * 60, Expires: result.ExpiresAt})
+				success(c, http.StatusOK, gin.H{"user": result.User, "expires_at": result.ExpiresAt})
+			} else {
+				success(c, http.StatusOK, gin.H{"user": result.User, "access_token": result.Token, "expires_at": result.ExpiresAt})
+			}
+		}
+	}
+	r.POST("/api/admin/v1/auth/login", login("admin"))
+	r.POST("/api/v1/auth/login", login("app"))
+	logout := func(audience string) gin.HandlerFunc {
+		return func(c *gin.Context) {
+			if audience == "admin" && !sameOrigin(c.Request) {
+				fail(c, apperror.ErrForbidden)
+				return
+			}
+			token := requestToken(c.Request, audience)
+			if err := options.Auth.Logout(c.Request.Context(), token, audience); err != nil {
+				fail(c, err)
+				return
+			}
+			if audience == "admin" {
+				http.SetCookie(c.Writer, &http.Cookie{Name: sessionCookie, Value: "", Path: "/api/admin", HttpOnly: true, Secure: options.SecureCookie, SameSite: http.SameSiteStrictMode, MaxAge: -1})
+			}
+			success(c, http.StatusOK, gin.H{"revoked": true})
+		}
+	}
+	r.POST("/api/admin/v1/auth/logout", adminAuth, logout("admin"))
+	r.POST("/api/v1/auth/logout", appAuth, logout("app"))
+	r.GET("/api/admin/v1/me", adminAuth, func(c *gin.Context) { success(c, http.StatusOK, currentUser(c)) })
+	r.GET("/api/v1/me", appAuth, func(c *gin.Context) { success(c, http.StatusOK, currentUser(c)) })
+	r.GET("/api/admin/v1/users", adminAuth, func(c *gin.Context) {
+		users, err := options.Auth.ListUsers(c.Request.Context())
+		if err != nil {
+			fail(c, err)
+			return
+		}
+		success(c, http.StatusOK, users)
+	})
+	r.GET("/api/v1/accounts", appAuth, func(c *gin.Context) {
+		if options.Accounts == nil {
+			fail(c, apperror.ErrUnavailable)
+			return
+		}
+		list, err := options.Accounts.List(c.Request.Context(), currentUser(c).ID)
+		if err != nil {
+			fail(c, err)
+			return
+		}
+		success(c, http.StatusOK, list)
+	})
+	r.POST("/api/v1/accounts", appAuth, func(c *gin.Context) {
+		var input struct {
+			Mode        string  `json:"mode"`
+			Name        string  `json:"name"`
+			InitialCash *string `json:"initial_cash"`
+		}
+		if !decode(c, &input) {
+			return
+		}
+		if options.Accounts == nil {
+			fail(c, apperror.ErrUnavailable)
+			return
+		}
+		account, err := options.Accounts.Create(c.Request.Context(), currentUser(c).ID, input.Mode, input.Name, input.InitialCash)
+		if err != nil {
+			fail(c, err)
+			return
+		}
+		success(c, http.StatusCreated, account)
+	})
+	r.GET("/api/v1/accounts/:id/summary", appAuth, func(c *gin.Context) {
+		if options.Accounts == nil {
+			fail(c, apperror.ErrUnavailable)
+			return
+		}
+		account, err := options.Accounts.Get(c.Request.Context(), currentUser(c).ID, c.Param("id"))
+		if err != nil {
+			fail(c, err)
+			return
+		}
+		success(c, http.StatusOK, account)
+	})
+}
+
+func authenticate(c *gin.Context, options IdentityOptions, audience string) {
+	if options.Auth == nil {
+		fail(c, apperror.ErrUnavailable)
+		return
+	}
+	token := requestToken(c.Request, audience)
+	if token == "" {
+		fail(c, apperror.ErrUnauthenticated)
+		return
+	}
+	user, err := options.Auth.Authenticate(c.Request.Context(), token, audience)
+	if err != nil {
+		fail(c, err)
+		return
+	}
+	c.Set("user", user)
+	c.Next()
+}
+
+func requestToken(r *http.Request, audience string) string {
+	if audience == "admin" {
+		cookie, err := r.Cookie(sessionCookie)
+		if err == nil {
+			return cookie.Value
+		}
+		return ""
+	}
+	scheme, token, ok := strings.Cut(r.Header.Get("Authorization"), " ")
+	if !ok || !strings.EqualFold(scheme, "Bearer") {
+		return ""
+	}
+	return token
+}
+
+func currentUser(c *gin.Context) model.User { return c.MustGet("user").(model.User) }
+
+// The embedded console and Vite development proxy both call APIs on their own origin.
+func sameOrigin(r *http.Request) bool {
+	origin, err := url.Parse(r.Header.Get("Origin"))
+	if err != nil || origin.Host == "" || origin.User != nil || origin.Path != "" || origin.RawQuery != "" || origin.Fragment != "" {
+		return false
+	}
+	scheme := "http"
+	if r.TLS != nil {
+		scheme = "https"
+	}
+	return origin.Scheme == scheme && origin.Host == r.Host
+}
+
+func decode(c *gin.Context, value any) bool {
+	c.Request.Body = http.MaxBytesReader(c.Writer, c.Request.Body, 16<<10)
+	if !strings.HasPrefix(strings.ToLower(c.GetHeader("Content-Type")), "application/json") {
+		failure(c, http.StatusUnsupportedMediaType, "INVALID_CONTENT_TYPE", "请使用 application/json。", false)
+		return false
+	}
+	decoder := json.NewDecoder(c.Request.Body)
+	decoder.DisallowUnknownFields()
+	if err := decoder.Decode(value); err != nil {
+		fail(c, apperror.ErrInvalidInput)
+		return false
+	}
+	var extra any
+	if err := decoder.Decode(&extra); err != io.EOF {
+		fail(c, apperror.ErrInvalidInput)
+		return false
+	}
+	return true
+}
+
+func success(c *gin.Context, status int, data any) {
+	c.JSON(status, gin.H{"data": data, "meta": gin.H{"request_id": c.Writer.Header().Get("X-Request-ID"), "server_time": time.Now().UTC()}})
+}
+func failure(c *gin.Context, status int, code, message string, retryable bool) {
+	c.AbortWithStatusJSON(status, gin.H{"error": gin.H{"code": code, "message": message, "retryable": retryable}, "meta": gin.H{"request_id": c.Writer.Header().Get("X-Request-ID")}})
+}
+func fail(c *gin.Context, err error) {
+	switch {
+	case errors.Is(err, apperror.ErrInvalidInput):
+		failure(c, http.StatusUnprocessableEntity, "INVALID_INPUT", "请检查输入内容；资金最多两位小数，密码为 12–72 字节。", false)
+	case errors.Is(err, apperror.ErrUnauthenticated):
+		failure(c, http.StatusUnauthorized, "UNAUTHENTICATED", "登录信息无效或会话已过期。", false)
+	case errors.Is(err, apperror.ErrForbidden):
+		failure(c, http.StatusForbidden, "FORBIDDEN", "无权执行此操作。", false)
+	case errors.Is(err, apperror.ErrConflict):
+		failure(c, http.StatusConflict, "CONFLICT", "该登录名或账户类型已存在。", false)
+	case errors.Is(err, apperror.ErrNotFound):
+		failure(c, http.StatusNotFound, "NOT_FOUND", "记录不存在。", false)
+	default:
+		failure(c, http.StatusServiceUnavailable, "SERVICE_UNAVAILABLE", "服务暂不可用；请检查依赖连接和数据库迁移。", true)
+	}
+}

internal/handler/identity_test.go

@@ -0,0 +1,52 @@
+package handler
+
+import (
+	"context"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/service"
+)
+
+func TestAuthenticationAndCSRFBoundaries(t *testing.T) {
+	auth, err := service.NewAuthService(nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	probe := func(context.Context) error { return nil }
+	router := NewRouter(service.NewHealthService(probe, probe), slog.New(slog.NewTextHandler(io.Discard, nil)), IdentityOptions{Auth: auth, DevelopmentLogin: true})
+	for _, tc := range []struct {
+		method, path, body, origin string
+		status                     int
+	}{
+		{http.MethodGet, "/api/admin/v1/users", "", "", 401},
+		{http.MethodGet, "/api/v1/accounts", "", "", 401},
+		{http.MethodPost, "/api/admin/v1/auth/login", `{"login_name":"admin","password":"test-password"}`, "http://evil.example", 403},
+		{http.MethodPost, "/api/admin/v1/auth/login", `{"login_name":"admin","password":"test-password"}`, "", 403},
+		{http.MethodPost, "/api/admin/v1/auth/login", `{"login_name":"admin","password":"test-password","role":"ADMIN"}`, "http://example.com", 422},
+		{http.MethodPost, "/api/v1/auth/login", `{} {}`, "", 422},
+	} {
+		req := httptest.NewRequest(tc.method, "http://example.com"+tc.path, strings.NewReader(tc.body))
+		req.Header.Set("Content-Type", "application/json")
+		req.Header.Set("Origin", tc.origin)
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, req)
+		if rec.Code != tc.status {
+			t.Fatalf("%s %s got %d want %d", tc.method, tc.path, rec.Code, tc.status)
+		}
+	}
+}
+
+func TestDevelopmentLoginDisabledByDefault(t *testing.T) {
+	probe := func(context.Context) error { return nil }
+	router := NewRouter(service.NewHealthService(probe, probe), slog.New(slog.NewTextHandler(io.Discard, nil)), IdentityOptions{})
+	rec := httptest.NewRecorder()
+	router.ServeHTTP(rec, httptest.NewRequest(http.MethodPost, "/api/v1/auth/login", strings.NewReader(`{}`)))
+	if rec.Code != http.StatusServiceUnavailable {
+		t.Fatal("development login open outside explicitly enabled environment")
+	}
+}

internal/handler/router.go

@@ -0,0 +1,60 @@
+// Package handler adapts application services to the HTTP protocol.
+package handler
+
+import (
+	"context"
+	"log/slog"
+	"net/http"
+	"strings"
+	"time"
+
+	"github.com/gin-gonic/gin"
+	"github.com/google/uuid"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/adminui"
+	"git.sundynix.cn/Blizzard/Veyra/internal/service"
+)
+
+func NewRouter(health *service.HealthService, logger *slog.Logger, identity IdentityOptions) http.Handler {
+	gin.SetMode(gin.ReleaseMode)
+	r := gin.New()
+	r.Use(func(c *gin.Context) {
+		ctx, cancel := context.WithTimeout(c.Request.Context(), 5*time.Second)
+		defer cancel()
+		c.Request = c.Request.WithContext(ctx)
+		requestID := uuid.NewString()
+		c.Header("X-Request-ID", requestID)
+		c.Header("X-Content-Type-Options", "nosniff")
+		c.Header("Cache-Control", "no-store")
+		start := time.Now()
+		defer func() {
+			if recover() != nil {
+				logger.Error("request panic", "request_id", requestID)
+				c.AbortWithStatusJSON(http.StatusInternalServerError, gin.H{"error": gin.H{"code": "INTERNAL_ERROR", "message": "Internal server error", "request_id": requestID}})
+			}
+			logger.Info("http request", "method", c.Request.Method, "route", c.FullPath(), "status", c.Writer.Status(), "duration_ms", time.Since(start).Milliseconds(), "request_id", requestID)
+		}()
+		c.Next()
+	})
+	r.GET("/healthz", func(c *gin.Context) { c.JSON(http.StatusOK, gin.H{"status": "alive"}) })
+	check := func(c *gin.Context) {
+		h := health.Check(c.Request.Context())
+		status := http.StatusOK
+		if h.Status != "ready" {
+			status = http.StatusServiceUnavailable
+		}
+		c.JSON(status, h)
+	}
+	r.GET("/readyz", check)
+	r.GET("/api/v1/system/health", check)
+	bindIdentity(r, identity)
+	console := adminui.Handler()
+	r.NoRoute(func(c *gin.Context) {
+		if !strings.HasPrefix(c.Request.URL.Path, "/api/") && c.Request.URL.Path != "/api" {
+			console.ServeHTTP(c.Writer, c.Request)
+			return
+		}
+		c.JSON(http.StatusNotFound, gin.H{"error": gin.H{"code": "NOT_FOUND", "message": "Endpoint not found"}})
+	})
+	return r
+}

internal/handler/router_test.go

@@ -0,0 +1,68 @@
+package handler
+
+import (
+	"context"
+	"errors"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"strings"
+	"testing"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/service"
+)
+
+func TestLivenessAndReadinessAreIndependent(t *testing.T) {
+	secretError := "password=secret-internal-detail"
+	health := service.NewHealthService(nil, func(context.Context) error { return errors.New(secretError) })
+	router := NewRouter(health, slog.New(slog.NewTextHandler(io.Discard, nil)), IdentityOptions{})
+	for _, tc := range []struct {
+		path   string
+		status int
+	}{{"/healthz", http.StatusOK}, {"/readyz", http.StatusServiceUnavailable}, {"/api/v1/system/health", http.StatusServiceUnavailable}} {
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, tc.path, nil))
+		if rec.Code != tc.status {
+			t.Fatalf("%s: got %d", tc.path, rec.Code)
+		}
+		if strings.Contains(rec.Body.String(), secretError) {
+			t.Fatal("health endpoint leaked internal error")
+		}
+		if rec.Header().Get("X-Request-ID") == "" {
+			t.Fatal("missing trace ID")
+		}
+	}
+}
+
+func TestReadyWhenBothDependenciesRespond(t *testing.T) {
+	probe := func(context.Context) error { return nil }
+	router := NewRouter(service.NewHealthService(probe, probe), slog.New(slog.NewTextHandler(io.Discard, nil)), IdentityOptions{})
+	rec := httptest.NewRecorder()
+	router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, "/readyz", nil))
+	if rec.Code != http.StatusOK {
+		t.Fatalf("got %d", rec.Code)
+	}
+}
+
+func TestEmbeddedConsoleAndAPIBoundary(t *testing.T) {
+	probe := func(context.Context) error { return nil }
+	router := NewRouter(service.NewHealthService(probe, probe), slog.New(slog.NewTextHandler(io.Discard, nil)), IdentityOptions{})
+	for _, path := range []string{"/", "/research/candidates"} {
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, path, nil))
+		if rec.Code == http.StatusServiceUnavailable {
+			t.Skip("build management console before testing embedded assets")
+		}
+		if rec.Code != http.StatusOK || !strings.Contains(rec.Body.String(), "<html") {
+			t.Fatalf("embedded SPA %s: status=%d", path, rec.Code)
+		}
+	}
+	for _, path := range []string{"/api/v1/missing", "/assets/missing.js", "/.keep"} {
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, httptest.NewRequest(http.MethodGet, path, nil))
+		if rec.Code != http.StatusNotFound || strings.Contains(rec.Body.String(), "<html") {
+			t.Fatalf("missing route %s must not serve the SPA: %d", path, rec.Code)
+		}
+	}
+}

internal/integration/identity_account_test.go

@@ -0,0 +1,181 @@
+package integration
+
+import (
+	"context"
+	"errors"
+	"io"
+	"log/slog"
+	"net/http"
+	"net/http/httptest"
+	"os"
+	"strings"
+	"testing"
+	"time"
+
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"git.sundynix.cn/Blizzard/Veyra/internal/database"
+	"git.sundynix.cn/Blizzard/Veyra/internal/handler"
+	"git.sundynix.cn/Blizzard/Veyra/internal/repository"
+	"git.sundynix.cn/Blizzard/Veyra/internal/service"
+)
+
+func TestIdentityAccountLifecycle(t *testing.T) {
+	dsn := os.Getenv("VEYRA_TEST_DATABASE_URL")
+	if dsn == "" {
+		t.Skip("set VEYRA_TEST_DATABASE_URL for real database integration")
+	}
+	ctx, cancel := context.WithTimeout(context.Background(), 30*time.Second)
+	defer cancel()
+	admin, err := pgxpool.New(ctx, dsn)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer admin.Close()
+	schema := "veyra_test_" + strings.ReplaceAll(uuid.NewString(), "-", "")
+	if _, err := admin.Exec(ctx, "CREATE SCHEMA "+schema); err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		if _, err := admin.Exec(context.Background(), "DROP SCHEMA "+schema+" CASCADE"); err != nil {
+			t.Error(err)
+		}
+	}()
+	cfg, err := pgxpool.ParseConfig(dsn)
+	if err != nil {
+		t.Fatal(err)
+	}
+	cfg.ConnConfig.RuntimeParams["search_path"] = schema
+	pool, err := pgxpool.NewWithConfig(ctx, cfg)
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer pool.Close()
+	if err := database.Migrate(ctx, pool); err != nil {
+		t.Fatal(err)
+	}
+	auth, err := service.NewAuthService(repository.NewIdentityRepository(pool))
+	if err != nil {
+		t.Fatal(err)
+	}
+	u1, err := auth.ProvisionUser(ctx, "alice", "a-test-only-password", "Alice", "USER")
+	if err != nil {
+		t.Fatal(err)
+	}
+	u2, err := auth.ProvisionUser(ctx, "bob", "another-test-password", "Bob", "USER")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := auth.ProvisionUser(ctx, "alice", "a-test-only-password", "Duplicate", "USER"); !errors.Is(err, apperror.ErrConflict) {
+		t.Fatalf("duplicate identity: %v", err)
+	}
+	var count int
+	if err := pool.QueryRow(ctx, "SELECT count(*) FROM veyra_user").Scan(&count); err != nil || count != 2 {
+		t.Fatal("credential conflict left an orphan user")
+	}
+	login, err := auth.Login(ctx, "alice", "a-test-only-password", "app")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := auth.Authenticate(ctx, login.Token, "admin"); !errors.Is(err, apperror.ErrUnauthenticated) {
+		t.Fatal("app session escaped audience")
+	}
+	if _, err := auth.Authenticate(ctx, login.Token, "app"); err != nil {
+		t.Fatal(err)
+	}
+	if err := auth.Logout(ctx, login.Token, "app"); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := auth.Authenticate(ctx, login.Token, "app"); !errors.Is(err, apperror.ErrUnauthenticated) {
+		t.Fatal("revoked session remained valid")
+	}
+	accounts := service.NewAccountService(repository.NewAccountRepository(pool))
+	cash := "100000.01"
+	a, err := accounts.Create(ctx, u1.ID, "simulation", "Simulation", &cash)
+	if err != nil || a.CashBalance == nil || *a.CashBalance != cash {
+		t.Fatalf("simulation balance: %v", err)
+	}
+	if _, err := accounts.Get(ctx, u2.ID, a.ID); !errors.Is(err, apperror.ErrNotFound) {
+		t.Fatal("cross-user account disclosed")
+	}
+	if _, err := accounts.Create(ctx, u1.ID, "simulation", "Duplicate", &cash); !errors.Is(err, apperror.ErrConflict) {
+		t.Fatal("duplicate simulation account accepted")
+	}
+	if err := pool.QueryRow(ctx, "SELECT count(*) FROM veyra_cash_entry").Scan(&count); err != nil || count != 1 {
+		t.Fatal("duplicate creation left a cash entry")
+	}
+	real, err := accounts.Create(ctx, u1.ID, "manual_real", "Manual", nil)
+	if err != nil || real.CashBalance != nil || real.LedgerStatus != "INCOMPLETE" {
+		t.Fatalf("manual account fabricated cash: %v", err)
+	}
+	if _, err := accounts.Create(ctx, u2.ID, "manual_real", "Manual", &cash); !errors.Is(err, apperror.ErrInvalidInput) {
+		t.Fatal("manual account accepted simulated funding")
+	}
+	list, err := accounts.List(ctx, u2.ID)
+	if err != nil || len(list) != 0 {
+		t.Fatal("account list escaped owner scope")
+	}
+	login, err = auth.Login(ctx, "alice", "a-test-only-password", "app")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := pool.Exec(ctx, "UPDATE veyra_session SET created_at=now()-interval '1 day',expires_at=now()-interval '1 hour' WHERE token_hash=$1", service.TokenHash(login.Token)); err != nil {
+		t.Fatal(err)
+	}
+	if _, err := auth.Authenticate(ctx, login.Token, "app"); !errors.Is(err, apperror.ErrUnauthenticated) {
+		t.Fatal("expired session remained valid")
+	}
+	if _, err := auth.ProvisionUser(ctx, "admin", "an-admin-test-password", "Admin", "ADMIN"); err != nil {
+		t.Fatal(err)
+	}
+	probe := func(context.Context) error { return nil }
+	router := handler.NewRouter(service.NewHealthService(probe, probe), slog.New(slog.NewTextHandler(io.Discard, nil)), handler.IdentityOptions{Auth: auth, Accounts: accounts, Limiter: allowLogin{}, DevelopmentLogin: true})
+	call := func(method, path, body, origin string, cookie *http.Cookie) *httptest.ResponseRecorder {
+		req := httptest.NewRequest(method, "http://example.com"+path, strings.NewReader(body))
+		if body != "" {
+			req.Header.Set("Content-Type", "application/json")
+		}
+		if origin != "" {
+			req.Header.Set("Origin", origin)
+		}
+		if cookie != nil {
+			req.AddCookie(cookie)
+		}
+		rec := httptest.NewRecorder()
+		router.ServeHTTP(rec, req)
+		return rec
+	}
+	response := call(http.MethodPost, "/api/admin/v1/auth/login", `{"login_name":"admin","password":"an-admin-test-password"}`, "http://example.com", nil)
+	if response.Code != http.StatusOK {
+		t.Fatalf("admin login failed: %d", response.Code)
+	}
+	cookies := response.Result().Cookies()
+	if len(cookies) != 1 || !cookies[0].HttpOnly || cookies[0].SameSite != http.SameSiteStrictMode || cookies[0].Path != "/api/admin" {
+		t.Fatal("admin cookie constraints missing")
+	}
+	cookie := cookies[0]
+	if strings.Contains(response.Body.String(), cookie.Value) {
+		t.Fatal("admin token leaked into response body")
+	}
+	if response := call(http.MethodGet, "/api/admin/v1/me", "", "", cookie); response.Code != http.StatusOK {
+		t.Fatal("cookie authentication failed")
+	}
+	if response := call(http.MethodPost, "/api/admin/v1/auth/logout", "", "http://attacker.example", cookie); response.Code != http.StatusForbidden {
+		t.Fatal("cross-origin logout allowed")
+	}
+	if response := call(http.MethodGet, "/api/admin/v1/me", "", "", cookie); response.Code != http.StatusOK {
+		t.Fatal("CSRF attempt revoked a session")
+	}
+	if response := call(http.MethodPost, "/api/admin/v1/auth/logout", "", "http://example.com", cookie); response.Code != http.StatusOK {
+		t.Fatal("logout failed")
+	}
+	if response := call(http.MethodGet, "/api/admin/v1/me", "", "", cookie); response.Code != http.StatusUnauthorized {
+		t.Fatal("revoked admin cookie remained valid")
+	}
+}
+
+type allowLogin struct{}
+
+func (allowLogin) Login(context.Context, string, string) (bool, error) { return true, nil }

internal/model/account.go

@@ -0,0 +1,15 @@
+package model
+
+import "time"
+
+type Account struct {
+	ID           string    `db:"id" json:"id"`
+	UserID       string    `db:"user_id" json:"user_id"`
+	Mode         string    `db:"mode" json:"mode"`
+	Name         string    `db:"name" json:"name"`
+	Currency     string    `db:"currency" json:"currency"`
+	LedgerStatus string    `db:"ledger_status" json:"ledger_status"`
+	CreatedAt    time.Time `db:"created_at" json:"created_at"`
+}
+
+func (Account) TableName() string { return "veyra_account" }

internal/model/auth.go

@@ -0,0 +1,27 @@
+package model
+
+import (
+	"time"
+)
+
+type Credential struct {
+	ID           string    `db:"id"`
+	UserID       string    `db:"user_id"`
+	LoginName    string    `db:"login_name"`
+	PasswordHash string    `db:"password_hash" json:"-"`
+	CreatedAt    time.Time `db:"created_at"`
+}
+
+func (Credential) TableName() string { return "veyra_credential" }
+
+type Session struct {
+	ID        string     `db:"id"`
+	UserID    string     `db:"user_id"`
+	TokenHash string     `db:"token_hash" json:"-"`
+	Audience  string     `db:"audience"`
+	ExpiresAt time.Time  `db:"expires_at"`
+	RevokedAt *time.Time `db:"revoked_at"`
+	CreatedAt time.Time  `db:"created_at"`
+}
+
+func (Session) TableName() string { return "veyra_session" }

internal/model/cash_entry.go

@@ -0,0 +1,19 @@
+package model
+
+import "time"
+
+// CashEntry amounts are integer CNY cents; no floating-point accounting.
+type CashEntry struct {
+	ID          string    `db:"id"`
+	AccountID   string    `db:"account_id"`
+	EntryType   string    `db:"entry_type"`
+	AmountMinor int64     `db:"amount_minor"`
+	CreatedAt   time.Time `db:"created_at"`
+}
+
+func (CashEntry) TableName() string { return "veyra_cash_entry" }
+
+type AccountSummary struct {
+	Account
+	CashBalance *string `json:"cash_balance"`
+}

internal/model/money.go

@@ -0,0 +1,36 @@
+package model
+
+import (
+	"fmt"
+	"regexp"
+	"strconv"
+	"strings"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+)
+
+var moneyPattern = regexp.MustCompile(`^(0|[1-9][0-9]{0,9})(\.[0-9]{1,2})?$`)
+
+// ParseMoney converts decimal text into exact cents, rejecting rounding and exponents.
+func ParseMoney(value string) (int64, error) {
+	if !moneyPattern.MatchString(value) {
+		return 0, apperror.ErrInvalidInput
+	}
+	whole, fraction, _ := strings.Cut(value, ".")
+	units, err := strconv.ParseInt(whole, 10, 64)
+	if err != nil {
+		return 0, apperror.ErrInvalidInput
+	}
+	fraction += strings.Repeat("0", 2-len(fraction))
+	cents, err := strconv.ParseInt(fraction, 10, 64)
+	if err != nil {
+		return 0, apperror.ErrInvalidInput
+	}
+	amount := units*100 + cents
+	if amount > 100000000000 {
+		return 0, apperror.ErrInvalidInput
+	}
+	return amount, nil
+}
+
+func FormatMoney(minor int64) string { return fmt.Sprintf("%d.%02d", minor/100, minor%100) }

internal/model/money_test.go

@@ -0,0 +1,21 @@
+package model
+
+import "testing"
+
+func TestExactMoney(t *testing.T) {
+	for _, tc := range []struct {
+		input     string
+		minor     int64
+		formatted string
+	}{{"0", 0, "0.00"}, {"0.01", 1, "0.01"}, {"100000.10", 10000010, "100000.10"}, {"3.1", 310, "3.10"}, {"1000000000.00", 100000000000, "1000000000.00"}} {
+		amount, err := ParseMoney(tc.input)
+		if err != nil || amount != tc.minor || FormatMoney(amount) != tc.formatted {
+			t.Fatalf("%s: amount=%d err=%v", tc.input, amount, err)
+		}
+	}
+	for _, input := range []string{"-1", "1.001", "1e3", "NaN", " 1", "01", "1.", "1000000000.01", "999999999999999999999", ""} {
+		if _, err := ParseMoney(input); err == nil {
+			t.Fatalf("accepted invalid amount %q", input)
+		}
+	}
+}

internal/model/schema_migration.go

@@ -0,0 +1,12 @@
+package model
+
+import "time"
+
+type SchemaMigration struct {
+	ID        string    `db:"id"`
+	Version   string    `db:"version"`
+	Checksum  string    `db:"checksum"`
+	AppliedAt time.Time `db:"applied_at"`
+}
+
+func (SchemaMigration) TableName() string { return "veyra_schema_migration" }

internal/model/user.go

@@ -0,0 +1,15 @@
+package model
+
+import "time"
+
+// User maps explicitly to veyra_user. IDs are canonical UUID strings.
+type User struct {
+	ID          string    `db:"id" json:"id"`
+	DisplayName string    `db:"display_name" json:"display_name"`
+	Status      string    `db:"status" json:"status"`
+	Role        string    `db:"role" json:"-"`
+	CreatedAt   time.Time `db:"created_at" json:"created_at"`
+	UpdatedAt   time.Time `db:"updated_at" json:"updated_at"`
+}
+
+func (User) TableName() string { return "veyra_user" }

internal/ratelimit/redis.go

@@ -0,0 +1,34 @@
+package ratelimit
+
+import (
+	"context"
+	"crypto/sha256"
+	"fmt"
+
+	"github.com/redis/go-redis/v9"
+)
+
+type Redis struct{ client *redis.Client }
+
+func NewRedis(client *redis.Client) *Redis { return &Redis{client: client} }
+
+var loginCounter = redis.NewScript(`local n = redis.call('INCR', KEYS[1]); if n == 1 then redis.call('EXPIRE', KEYS[1], 900) end; return n`)
+
+// Login permits at most 20 attempts per IP and 10 per login in a 15-minute window.
+// Redis errors fail closed. Neither credential nor IP is stored in plaintext keys.
+func (r *Redis) Login(ctx context.Context, ip, login string) (bool, error) {
+	for _, item := range []struct {
+		kind, value string
+		limit       int64
+	}{{"ip", ip, 20}, {"name", login, 10}} {
+		key := fmt.Sprintf("veyra:login:%s:%x", item.kind, sha256.Sum256([]byte(item.value)))
+		n, err := loginCounter.Run(ctx, r.client, []string{key}).Int64()
+		if err != nil {
+			return false, err
+		}
+		if n > item.limit {
+			return false, nil
+		}
+	}
+	return true, nil
+}

internal/repository/account.go

@@ -0,0 +1,86 @@
+package repository
+
+import (
+	"context"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"git.sundynix.cn/Blizzard/Veyra/internal/model"
+)
+
+type AccountRepository struct{ pool *pgxpool.Pool }
+
+func NewAccountRepository(pool *pgxpool.Pool) *AccountRepository {
+	return &AccountRepository{pool: pool}
+}
+
+func (r *AccountRepository) Create(ctx context.Context, a model.Account, entry *model.CashEntry) (model.AccountSummary, error) {
+	tx, err := r.pool.Begin(ctx)
+	if err != nil {
+		return model.AccountSummary{}, apperror.ErrUnavailable
+	}
+	defer tx.Rollback(context.Background())
+	// Lock the owner so account creation cannot race with disabling the user.
+	var status string
+	if err := tx.QueryRow(ctx, `SELECT status FROM veyra_user WHERE id=$1 AND role='USER' FOR UPDATE`, a.UserID).Scan(&status); err != nil {
+		return model.AccountSummary{}, mapError(err)
+	}
+	if status != "ACTIVE" {
+		return model.AccountSummary{}, apperror.ErrForbidden
+	}
+	err = tx.QueryRow(ctx, `INSERT INTO veyra_account(id,user_id,mode,name,currency,ledger_status) VALUES($1,$2,$3,$4,$5,$6) RETURNING created_at`, a.ID, a.UserID, a.Mode, a.Name, a.Currency, a.LedgerStatus).Scan(&a.CreatedAt)
+	if err != nil {
+		return model.AccountSummary{}, mapError(err)
+	}
+	var balance *string
+	if entry != nil {
+		if _, err := tx.Exec(ctx, `INSERT INTO veyra_cash_entry(id,account_id,entry_type,amount_minor) VALUES($1,$2,$3,$4)`, entry.ID, entry.AccountID, entry.EntryType, entry.AmountMinor); err != nil {
+			return model.AccountSummary{}, mapError(err)
+		}
+		value := model.FormatMoney(entry.AmountMinor)
+		balance = &value
+	}
+	if err := tx.Commit(ctx); err != nil {
+		return model.AccountSummary{}, apperror.ErrUnavailable
+	}
+	return model.AccountSummary{Account: a, CashBalance: balance}, nil
+}
+
+const summarySelect = `SELECT a.id,a.user_id,a.mode,a.name,a.currency,a.ledger_status,a.created_at,CASE WHEN a.ledger_status='COMPLETE' THEN (SELECT COALESCE(sum(e.amount_minor),0)::bigint FROM veyra_cash_entry e WHERE e.account_id=a.id) ELSE NULL END FROM veyra_account a`
+
+func scanSummary(row pgx.Row) (model.AccountSummary, error) {
+	var s model.AccountSummary
+	var minor *int64
+	err := row.Scan(&s.ID, &s.UserID, &s.Mode, &s.Name, &s.Currency, &s.LedgerStatus, &s.CreatedAt, &minor)
+	if err != nil {
+		return s, mapError(err)
+	}
+	if minor != nil {
+		value := model.FormatMoney(*minor)
+		s.CashBalance = &value
+	}
+	return s, nil
+}
+
+func (r *AccountRepository) Get(ctx context.Context, userID, accountID string) (model.AccountSummary, error) {
+	return scanSummary(r.pool.QueryRow(ctx, summarySelect+` WHERE a.user_id=$1 AND a.id=$2`, userID, accountID))
+}
+
+func (r *AccountRepository) List(ctx context.Context, userID string) ([]model.AccountSummary, error) {
+	rows, err := r.pool.Query(ctx, summarySelect+` WHERE a.user_id=$1 ORDER BY a.created_at,a.id`, userID)
+	if err != nil {
+		return nil, apperror.ErrUnavailable
+	}
+	defer rows.Close()
+	list := make([]model.AccountSummary, 0)
+	for rows.Next() {
+		s, err := scanSummary(rows)
+		if err != nil {
+			return nil, err
+		}
+		list = append(list, s)
+	}
+	return list, mapError(rows.Err())
+}

internal/repository/errors.go

@@ -0,0 +1,24 @@
+package repository
+
+import (
+	"errors"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgconn"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+)
+
+func mapError(err error) error {
+	if err == nil {
+		return nil
+	}
+	if errors.Is(err, pgx.ErrNoRows) {
+		return apperror.ErrNotFound
+	}
+	var pgErr *pgconn.PgError
+	if errors.As(err, &pgErr) && pgErr.Code == "23505" {
+		return apperror.ErrConflict
+	}
+	return apperror.ErrUnavailable
+}

internal/repository/identity.go

@@ -0,0 +1,82 @@
+package repository
+
+import (
+	"context"
+	"errors"
+	"time"
+
+	"github.com/jackc/pgx/v5"
+	"github.com/jackc/pgx/v5/pgxpool"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"git.sundynix.cn/Blizzard/Veyra/internal/model"
+)
+
+type IdentityRepository struct{ pool *pgxpool.Pool }
+
+func NewIdentityRepository(pool *pgxpool.Pool) *IdentityRepository {
+	return &IdentityRepository{pool: pool}
+}
+
+func (r *IdentityRepository) CreateUser(ctx context.Context, user model.User, credential model.Credential) (model.User, error) {
+	tx, err := r.pool.Begin(ctx)
+	if err != nil {
+		return model.User{}, apperror.ErrUnavailable
+	}
+	defer tx.Rollback(context.Background())
+	err = tx.QueryRow(ctx, `INSERT INTO veyra_user(id,display_name,status,role) VALUES($1,$2,$3,$4) RETURNING created_at,updated_at`, user.ID, user.DisplayName, user.Status, user.Role).Scan(&user.CreatedAt, &user.UpdatedAt)
+	if err != nil {
+		return model.User{}, mapError(err)
+	}
+	_, err = tx.Exec(ctx, `INSERT INTO veyra_credential(id,user_id,login_name,password_hash) VALUES($1,$2,$3,$4)`, credential.ID, credential.UserID, credential.LoginName, credential.PasswordHash)
+	if err != nil {
+		return model.User{}, mapError(err)
+	}
+	if err = tx.Commit(ctx); err != nil {
+		return model.User{}, apperror.ErrUnavailable
+	}
+	return user, nil
+}
+
+func (r *IdentityRepository) FindCredential(ctx context.Context, login string) (model.User, model.Credential, error) {
+	var u model.User
+	var c model.Credential
+	err := r.pool.QueryRow(ctx, `SELECT u.id,u.display_name,u.status,u.role,u.created_at,u.updated_at,c.id,c.user_id,c.login_name,c.password_hash,c.created_at FROM veyra_user u JOIN veyra_credential c ON c.user_id=u.id WHERE c.login_name=$1`, login).Scan(&u.ID, &u.DisplayName, &u.Status, &u.Role, &u.CreatedAt, &u.UpdatedAt, &c.ID, &c.UserID, &c.LoginName, &c.PasswordHash, &c.CreatedAt)
+	return u, c, mapError(err)
+}
+
+func (r *IdentityRepository) CreateSession(ctx context.Context, s model.Session) error {
+	_, err := r.pool.Exec(ctx, `INSERT INTO veyra_session(id,user_id,token_hash,audience,expires_at) VALUES($1,$2,$3,$4,$5)`, s.ID, s.UserID, s.TokenHash, s.Audience, s.ExpiresAt)
+	return mapError(err)
+}
+
+func (r *IdentityRepository) FindSessionUser(ctx context.Context, hash, audience string, now time.Time) (model.User, error) {
+	var u model.User
+	err := r.pool.QueryRow(ctx, `SELECT u.id,u.display_name,u.status,u.role,u.created_at,u.updated_at FROM veyra_session s JOIN veyra_user u ON u.id=s.user_id WHERE s.token_hash=$1 AND s.audience=$2 AND s.expires_at>$3 AND s.revoked_at IS NULL AND u.status='ACTIVE' AND (($2='admin' AND u.role='ADMIN') OR ($2='app' AND u.role='USER'))`, hash, audience, now).Scan(&u.ID, &u.DisplayName, &u.Status, &u.Role, &u.CreatedAt, &u.UpdatedAt)
+	if errors.Is(err, pgx.ErrNoRows) {
+		return model.User{}, apperror.ErrUnauthenticated
+	}
+	return u, mapError(err)
+}
+
+func (r *IdentityRepository) RevokeSession(ctx context.Context, hash, audience string, now time.Time) error {
+	_, err := r.pool.Exec(ctx, `UPDATE veyra_session SET revoked_at=$3 WHERE token_hash=$1 AND audience=$2 AND revoked_at IS NULL`, hash, audience, now)
+	return mapError(err)
+}
+
+func (r *IdentityRepository) ListUsers(ctx context.Context, limit int) ([]model.User, error) {
+	rows, err := r.pool.Query(ctx, `SELECT id,display_name,status,role,created_at,updated_at FROM veyra_user WHERE role='USER' ORDER BY created_at DESC,id DESC LIMIT $1`, limit)
+	if err != nil {
+		return nil, apperror.ErrUnavailable
+	}
+	defer rows.Close()
+	users := make([]model.User, 0)
+	for rows.Next() {
+		var u model.User
+		if err := rows.Scan(&u.ID, &u.DisplayName, &u.Status, &u.Role, &u.CreatedAt, &u.UpdatedAt); err != nil {
+			return nil, apperror.ErrUnavailable
+		}
+		users = append(users, u)
+	}
+	return users, mapError(rows.Err())
+}

internal/service/account.go

@@ -0,0 +1,70 @@
+package service
+
+import (
+	"context"
+	"strings"
+	"unicode/utf8"
+
+	"github.com/google/uuid"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"git.sundynix.cn/Blizzard/Veyra/internal/model"
+)
+
+type AccountRepository interface {
+	Create(context.Context, model.Account, *model.CashEntry) (model.AccountSummary, error)
+	List(context.Context, string) ([]model.AccountSummary, error)
+	Get(context.Context, string, string) (model.AccountSummary, error)
+}
+
+type AccountService struct{ repo AccountRepository }
+
+func NewAccountService(repo AccountRepository) *AccountService { return &AccountService{repo: repo} }
+
+func (s *AccountService) Create(ctx context.Context, userID, mode, name string, initialCash *string) (model.AccountSummary, error) {
+	if s.repo == nil {
+		return model.AccountSummary{}, apperror.ErrUnavailable
+	}
+	name = strings.TrimSpace(name)
+	if name == "" || utf8.RuneCountInString(name) > 80 {
+		return model.AccountSummary{}, apperror.ErrInvalidInput
+	}
+	account := model.Account{ID: uuid.NewString(), UserID: userID, Mode: mode, Name: name, Currency: "CNY", LedgerStatus: "INCOMPLETE"}
+	var entry *model.CashEntry
+	switch mode {
+	case "simulation":
+		if initialCash == nil {
+			return model.AccountSummary{}, apperror.ErrInvalidInput
+		}
+		amount, err := model.ParseMoney(*initialCash)
+		if err != nil {
+			return model.AccountSummary{}, err
+		}
+		account.LedgerStatus = "COMPLETE"
+		entry = &model.CashEntry{ID: uuid.NewString(), AccountID: account.ID, EntryType: "INITIAL", AmountMinor: amount}
+	case "manual_real":
+		if initialCash != nil {
+			return model.AccountSummary{}, apperror.ErrInvalidInput
+		}
+	default:
+		return model.AccountSummary{}, apperror.ErrInvalidInput
+	}
+	return s.repo.Create(ctx, account, entry)
+}
+
+func (s *AccountService) List(ctx context.Context, userID string) ([]model.AccountSummary, error) {
+	if s.repo == nil {
+		return nil, apperror.ErrUnavailable
+	}
+	return s.repo.List(ctx, userID)
+}
+
+func (s *AccountService) Get(ctx context.Context, userID, accountID string) (model.AccountSummary, error) {
+	if s.repo == nil {
+		return model.AccountSummary{}, apperror.ErrUnavailable
+	}
+	if _, err := uuid.Parse(accountID); err != nil {
+		return model.AccountSummary{}, apperror.ErrNotFound
+	}
+	return s.repo.Get(ctx, userID, accountID)
+}

internal/service/auth.go

@@ -0,0 +1,145 @@
+package service
+
+import (
+	"context"
+	"crypto/rand"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/hex"
+	"errors"
+	"fmt"
+	"regexp"
+	"strings"
+	"time"
+	"unicode/utf8"
+
+	"github.com/google/uuid"
+	"golang.org/x/crypto/bcrypt"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"git.sundynix.cn/Blizzard/Veyra/internal/model"
+)
+
+type AuthRepository interface {
+	CreateUser(context.Context, model.User, model.Credential) (model.User, error)
+	FindCredential(context.Context, string) (model.User, model.Credential, error)
+	CreateSession(context.Context, model.Session) error
+	FindSessionUser(context.Context, string, string, time.Time) (model.User, error)
+	RevokeSession(context.Context, string, string, time.Time) error
+	ListUsers(context.Context, int) ([]model.User, error)
+}
+
+type AuthService struct {
+	repo      AuthRepository
+	now       func() time.Time
+	dummyHash []byte
+}
+
+func NewAuthService(repo AuthRepository) (*AuthService, error) {
+	hash, err := bcrypt.GenerateFromPassword([]byte("invalid-user-timing-placeholder"), bcrypt.DefaultCost)
+	if err != nil {
+		return nil, fmt.Errorf("initialize password verifier: %w", err)
+	}
+	return &AuthService{repo: repo, now: time.Now, dummyHash: hash}, nil
+}
+
+var loginPattern = regexp.MustCompile(`^[a-z0-9_]{3,64}$`)
+
+// ProvisionUser is called by a local CLI. Public registration cannot choose ADMIN.
+func (s *AuthService) ProvisionUser(ctx context.Context, login, password, name, role string) (model.User, error) {
+	login = strings.ToLower(strings.TrimSpace(login))
+	name = strings.TrimSpace(name)
+	if !loginPattern.MatchString(login) || len(password) < 12 || len(password) > 72 || utf8.RuneCountInString(name) > 80 || name == "" || (role != "USER" && role != "ADMIN") {
+		return model.User{}, apperror.ErrInvalidInput
+	}
+	if s.repo == nil {
+		return model.User{}, apperror.ErrUnavailable
+	}
+	hash, err := bcrypt.GenerateFromPassword([]byte(password), bcrypt.DefaultCost)
+	if err != nil {
+		return model.User{}, fmt.Errorf("hash password: %w", err)
+	}
+	user := model.User{ID: uuid.NewString(), DisplayName: name, Status: "ACTIVE", Role: role}
+	credential := model.Credential{ID: uuid.NewString(), UserID: user.ID, LoginName: login, PasswordHash: string(hash)}
+	return s.repo.CreateUser(ctx, user, credential)
+}
+
+type LoginResult struct {
+	User      model.User
+	Token     string
+	ExpiresAt time.Time
+}
+
+func (s *AuthService) Login(ctx context.Context, login, password, audience string) (LoginResult, error) {
+	if audience != "admin" && audience != "app" {
+		return LoginResult{}, apperror.ErrInvalidInput
+	}
+	if s.repo == nil {
+		return LoginResult{}, apperror.ErrUnavailable
+	}
+	login = strings.ToLower(strings.TrimSpace(login))
+	if !loginPattern.MatchString(login) || len(password) > 72 || password == "" {
+		return LoginResult{}, apperror.ErrUnauthenticated
+	}
+	user, credential, err := s.repo.FindCredential(ctx, login)
+	if err != nil {
+		if errors.Is(err, apperror.ErrNotFound) {
+			_ = bcrypt.CompareHashAndPassword(s.dummyHash, []byte(password))
+			return LoginResult{}, apperror.ErrUnauthenticated
+		}
+		return LoginResult{}, err
+	}
+	if bcrypt.CompareHashAndPassword([]byte(credential.PasswordHash), []byte(password)) != nil || user.Status != "ACTIVE" || (audience == "admin" && user.Role != "ADMIN") || (audience == "app" && user.Role != "USER") {
+		return LoginResult{}, apperror.ErrUnauthenticated
+	}
+	raw := make([]byte, 32)
+	if _, err := rand.Read(raw); err != nil {
+		return LoginResult{}, fmt.Errorf("generate session token: %w", err)
+	}
+	token := base64.RawURLEncoding.EncodeToString(raw)
+	expires := s.now().UTC().Add(8 * time.Hour)
+	session := model.Session{ID: uuid.NewString(), UserID: user.ID, TokenHash: TokenHash(token), Audience: audience, ExpiresAt: expires}
+	if err := s.repo.CreateSession(ctx, session); err != nil {
+		return LoginResult{}, err
+	}
+	return LoginResult{User: user, Token: token, ExpiresAt: expires}, nil
+}
+
+func (s *AuthService) Authenticate(ctx context.Context, token, audience string) (model.User, error) {
+	if s.repo == nil {
+		return model.User{}, apperror.ErrUnavailable
+	}
+	if len(token) != 43 {
+		return model.User{}, apperror.ErrUnauthenticated
+	}
+	if audience != "admin" && audience != "app" {
+		return model.User{}, apperror.ErrUnauthenticated
+	}
+	user, err := s.repo.FindSessionUser(ctx, TokenHash(token), audience, s.now().UTC())
+	if err != nil {
+		return model.User{}, err
+	}
+	if user.Status != "ACTIVE" || audience == "admin" && user.Role != "ADMIN" || audience == "app" && user.Role != "USER" {
+		return model.User{}, apperror.ErrUnauthenticated
+	}
+	return user, nil
+}
+
+func (s *AuthService) Logout(ctx context.Context, token, audience string) error {
+	if s.repo == nil {
+		return apperror.ErrUnavailable
+	}
+	return s.repo.RevokeSession(ctx, TokenHash(token), audience, s.now().UTC())
+}
+
+func (s *AuthService) ListUsers(ctx context.Context) ([]model.User, error) {
+	if s.repo == nil {
+		return nil, apperror.ErrUnavailable
+	}
+	return s.repo.ListUsers(ctx, 100)
+}
+
+func TokenHash(token string) string {
+	sum := sha256.Sum256([]byte(token))
+	return hex.EncodeToString(sum[:])
+}

internal/service/auth_test.go

@@ -0,0 +1,92 @@
+package service
+
+import (
+	"context"
+	"errors"
+	"testing"
+	"time"
+
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"git.sundynix.cn/Blizzard/Veyra/internal/model"
+)
+
+type testRepository struct {
+	user            model.User
+	credential      model.Credential
+	session         model.Session
+	createdSessions int
+}
+
+func (r *testRepository) CreateUser(_ context.Context, u model.User, c model.Credential) (model.User, error) {
+	r.user = u
+	r.credential = c
+	return u, nil
+}
+func (r *testRepository) FindCredential(_ context.Context, login string) (model.User, model.Credential, error) {
+	if login != r.credential.LoginName {
+		return model.User{}, model.Credential{}, apperror.ErrNotFound
+	}
+	return r.user, r.credential, nil
+}
+func (r *testRepository) CreateSession(_ context.Context, s model.Session) error {
+	r.session = s
+	r.createdSessions++
+	return nil
+}
+func (r *testRepository) FindSessionUser(_ context.Context, _, _ string, _ time.Time) (model.User, error) {
+	return r.user, nil
+}
+func (r *testRepository) RevokeSession(_ context.Context, _, _ string, _ time.Time) error { return nil }
+func (r *testRepository) ListUsers(context.Context, int) ([]model.User, error) {
+	return []model.User{r.user}, nil
+}
+
+func TestPasswordAndSessionSecretsAreHashed(t *testing.T) {
+	ctx := context.Background()
+	repo := &testRepository{}
+	auth, err := NewAuthService(repo)
+	if err != nil {
+		t.Fatal(err)
+	}
+	password := "a-development-password"
+	if _, err := auth.ProvisionUser(ctx, " ADMIN ", password, "Admin", "ADMIN"); err != nil {
+		t.Fatal(err)
+	}
+	if repo.credential.PasswordHash == password || repo.credential.LoginName != "admin" {
+		t.Fatal("credential handling failed")
+	}
+	result, err := auth.Login(ctx, "admin", password, "admin")
+	if err != nil {
+		t.Fatal(err)
+	}
+	if len(result.Token) != 43 || repo.session.TokenHash == result.Token || repo.session.TokenHash != TokenHash(result.Token) {
+		t.Fatal("raw session secret persisted")
+	}
+	if _, err := auth.Login(ctx, "admin", "incorrect-password", "admin"); !errors.Is(err, apperror.ErrUnauthenticated) {
+		t.Fatal("wrong password accepted")
+	}
+	if _, err := auth.Login(ctx, "admin", password, "app"); !errors.Is(err, apperror.ErrUnauthenticated) {
+		t.Fatal("admin credential used for app login")
+	}
+	if _, err := auth.Login(ctx, "missing", password, "admin"); !errors.Is(err, apperror.ErrUnauthenticated) {
+		t.Fatal("missing identity was disclosed")
+	}
+	if repo.createdSessions != 1 {
+		t.Fatal("failed login created a session")
+	}
+	repo.user.Status = "DISABLED"
+	if _, err := auth.Authenticate(ctx, result.Token, "admin"); !errors.Is(err, apperror.ErrUnauthenticated) {
+		t.Fatal("disabled user remained authenticated")
+	}
+}
+
+func TestUserCannotAuthenticateAsAdmin(t *testing.T) {
+	repo := &testRepository{user: model.User{Status: "ACTIVE", Role: "USER"}}
+	auth, err := NewAuthService(repo)
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := auth.Authenticate(context.Background(), "1234567890123456789012345678901234567890123", "admin"); !errors.Is(err, apperror.ErrUnauthenticated) {
+		t.Fatal("user role passed admin authorization")
+	}
+}

internal/service/health.go

@@ -0,0 +1,49 @@
+package service
+
+import (
+	"context"
+	"sync"
+	"time"
+)
+
+type Probe func(context.Context) error
+
+type Component struct {
+	Status string `json:"status"`
+}
+type Health struct {
+	Status     string               `json:"status"`
+	CheckedAt  time.Time            `json:"checked_at"`
+	Components map[string]Component `json:"components"`
+}
+type HealthService struct{ postgres, redis Probe }
+
+func NewHealthService(postgres, redis Probe) *HealthService {
+	return &HealthService{postgres: postgres, redis: redis}
+}
+
+func (s *HealthService) Check(ctx context.Context) Health {
+	ctx, cancel := context.WithTimeout(ctx, 2*time.Second)
+	defer cancel()
+	result := Health{Status: "ready", CheckedAt: time.Now().UTC(), Components: map[string]Component{}}
+	var mu sync.Mutex
+	var wg sync.WaitGroup
+	for name, probe := range map[string]Probe{"postgresql": s.postgres, "redis": s.redis} {
+		wg.Go(func() {
+			status := "unavailable"
+			if probe == nil {
+				status = "not_configured"
+			} else if probe(ctx) == nil {
+				status = "ready"
+			}
+			mu.Lock()
+			defer mu.Unlock()
+			result.Components[name] = Component{Status: status}
+			if status != "ready" {
+				result.Status = "not_ready"
+			}
+		})
+	}
+	wg.Wait()
+	return result
+}