feat: 完成模拟交易闭环、App 与 A 股行情接入

统一单入口 Go 工程与前端依赖目录，增加后台供应商配置、候选审核、计划预算、成交冲正、持仓复盘和站内通知。接入策略版本、Python 回测、可配置 A 股公开行情及 zap 文件轮转日志，补充迁移、契约与验证。

internal/integration/notification_test.go

@@ -0,0 +1,123 @@
+package integration
+
+import (
+	"context"
+	"errors"
+	"git.sundynix.cn/Blizzard/Veyra/internal/apperror"
+	"git.sundynix.cn/Blizzard/Veyra/internal/model"
+	"git.sundynix.cn/Blizzard/Veyra/internal/repository"
+	"git.sundynix.cn/Blizzard/Veyra/internal/service"
+	"github.com/google/uuid"
+	"github.com/jackc/pgx/v5/pgxpool"
+	"testing"
+	"time"
+)
+
+func testNotifications(t *testing.T, ctx context.Context, pool *pgxpool.Pool, user model.User, candidate model.CandidateRevision, account string) {
+	t.Helper()
+	repo := repository.NewNotificationRepository(pool)
+	svc := service.NewNotificationService(repo, true)
+	var admin model.User
+	if err := pool.QueryRow(ctx, `SELECT id,role,status FROM veyra_user WHERE role='ADMIN' LIMIT 1`).Scan(&admin.ID, &admin.Role, &admin.Status); err != nil {
+		t.Fatal(err)
+	}
+	process := func() {
+		for i := 0; i < 50; i++ {
+			worked, err := repo.ProcessNext(ctx)
+			if err != nil {
+				t.Fatal(err)
+			}
+			if !worked {
+				return
+			}
+		}
+		t.Fatal("notification queue did not drain")
+	}
+	var cashBefore, fillBefore int64
+	if err := pool.QueryRow(ctx, `SELECT COALESCE(sum(amount_minor),0)::bigint FROM veyra_cash_entry WHERE account_id=$1`, account).Scan(&cashBefore); err != nil {
+		t.Fatal(err)
+	}
+	if err := pool.QueryRow(ctx, `SELECT count(*) FROM veyra_trade_fill WHERE account_id=$1`, account).Scan(&fillBefore); err != nil {
+		t.Fatal(err)
+	}
+	quote := service.SimulationQuoteInput{Symbol: candidate.Snapshot.Symbol, Exchange: candidate.Snapshot.Exchange, Price: "10.50", ObservedAt: time.Now().UTC()}
+	if _, err := svc.SaveQuote(ctx, user, quote, uuid.NewString()); !errors.Is(err, apperror.ErrForbidden) {
+		t.Fatal("user wrote quote")
+	}
+	q, err := svc.SaveQuote(ctx, admin, quote, uuid.NewString())
+	if err != nil {
+		t.Fatal(err)
+	}
+	process()
+	notices, err := svc.List(ctx, user)
+	if err != nil || len(notices) != 1 {
+		t.Fatalf("plan reminder missing: %d %v", len(notices), err)
+	}
+	quote.ObservedAt = time.Now().UTC()
+	if _, err := svc.SaveQuote(ctx, admin, quote, uuid.NewString()); err != nil {
+		t.Fatal(err)
+	}
+	process()
+	notices, err = svc.List(ctx, user)
+	if err != nil || len(notices) != 1 {
+		t.Fatal("repeated price produced duplicate reminder")
+	}
+	var cashAfter, fillAfter int64
+	if err := pool.QueryRow(ctx, `SELECT COALESCE(sum(amount_minor),0)::bigint FROM veyra_cash_entry WHERE account_id=$1`, account).Scan(&cashAfter); err != nil {
+		t.Fatal(err)
+	}
+	if err := pool.QueryRow(ctx, `SELECT count(*) FROM veyra_trade_fill WHERE account_id=$1`, account).Scan(&fillAfter); err != nil {
+		t.Fatal(err)
+	}
+	if cashBefore != cashAfter || fillBefore != fillAfter {
+		t.Fatal("reminder altered ledger")
+	}
+	stranger := user
+	stranger.ID = uuid.NewString()
+	if err := svc.MarkRead(ctx, stranger, notices[0].ID); !errors.Is(err, apperror.ErrNotFound) {
+		t.Fatal("cross user notification write")
+	}
+	if err := svc.MarkRead(ctx, user, notices[0].ID); err != nil {
+		t.Fatal(err)
+	}
+	tasks, err := svc.Tasks(ctx, admin)
+	if err != nil || len(tasks) == 0 {
+		t.Fatal("task audit missing")
+	}
+	for _, task := range tasks {
+		if task.ProcessedAt == nil {
+			t.Fatal("queue event did not commit processed flag")
+		}
+	}
+	// A second plan must not trigger on an expired or superseded quote event.
+	plans := service.NewTradePlanService(repository.NewTradePlanRepository(pool), true)
+	preview, err := plans.Preview(ctx, user, service.PlanPreviewInput{AccountID: account, CandidateRevisionID: candidate.ID, ExpectedCandidateVersion: candidate.Version, Quantity: "100", FeeBudget: "0"})
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := plans.Confirm(ctx, user, preview.ID, uuid.NewString()); err != nil {
+		t.Fatal(err)
+	}
+	quote.ObservedAt = time.Now().UTC()
+	q, err = svc.SaveQuote(ctx, admin, quote, uuid.NewString())
+	if err != nil {
+		t.Fatal(err)
+	}
+	if _, err := pool.Exec(ctx, `UPDATE veyra_quote_snapshot SET observed_at=now()-interval '2 minutes' WHERE id=$1`, q.ID); err != nil {
+		t.Fatal(err)
+	}
+	process()
+	notices, err = svc.List(ctx, user)
+	if err != nil || len(notices) != 1 {
+		t.Fatal("stale quote triggered plan")
+	}
+	quote.ObservedAt = time.Now().UTC()
+	if _, err := svc.SaveQuote(ctx, admin, quote, uuid.NewString()); err != nil {
+		t.Fatal(err)
+	}
+	process()
+	notices, err = svc.List(ctx, user)
+	if err != nil || len(notices) != 2 {
+		t.Fatal("fresh second-plan reminder failed")
+	}
+}