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/market/sina.go

@@ -0,0 +1,164 @@
+package market
+
+import (
+	"context"
+	"errors"
+	"git.sundynix.cn/Blizzard/Veyra/internal/model"
+	"golang.org/x/text/encoding/simplifiedchinese"
+	"io"
+	"net/http"
+	"net/url"
+	"strconv"
+	"strings"
+	"time"
+	_ "time/tzdata"
+)
+
+func exactPublicPrice(s string) (int64, error) {
+	if strings.Contains(s, ".") {
+		s = strings.TrimRight(s, "0")
+		s = strings.TrimSuffix(s, ".")
+	}
+	return model.ParseMoney(s)
+}
+func (c *Client) sinaSnapshot(ctx context.Context, config model.ProviderConfig) ([]model.Instrument, error) {
+	all := make([]model.Instrument, 0)
+	seen := map[string]bool{}
+	zone, _ := time.LoadLocation("Asia/Shanghai")
+	for page := 1; page <= 150; page++ {
+		var rows []struct{ Symbol, Code, Name string }
+		p := url.Values{"page": {strconv.Itoa(page)}, "num": {"80"}, "sort": {"symbol"}, "asc": {"1"}, "node": {"hs_a"}, "symbol": {""}}
+		p.Set("symbol", "")
+		if e := c.get(ctx, config.BaseURL, "/quotes_service/api/json_v2.php/Market_Center.getHQNodeData", p, &rows, config.TimeoutSeconds); e != nil {
+			return nil, e
+		}
+		if len(rows) == 0 {
+			if len(all) == 0 {
+				return nil, errors.New("empty market universe")
+			}
+			return all, nil
+		}
+		symbols := make([]string, 0)
+		names := map[string]string{}
+		for _, row := range rows {
+			if !(strings.HasPrefix(row.Symbol, "sh") || strings.HasPrefix(row.Symbol, "sz")) || len(row.Code) != 6 {
+				continue
+			}
+			if seen[row.Symbol] {
+				return nil, errors.New("duplicate market page")
+			}
+			seen[row.Symbol] = true
+			symbols = append(symbols, row.Symbol)
+			names[row.Symbol] = row.Name
+		}
+		if len(symbols) > 0 {
+			u, e := url.Parse(config.QuoteBaseURL)
+			if e != nil {
+				return nil, errors.New("invalid quote endpoint")
+			}
+			u.Path = strings.TrimRight(u.Path, "/") + "/list=" + strings.Join(symbols, ",")
+			req, e := http.NewRequestWithContext(ctx, http.MethodGet, u.String(), nil)
+			if e != nil {
+				return nil, errors.New("invalid quote request")
+			}
+			req.Header.Set("Referer", "https://finance.sina.com.cn/")
+			req.Header.Set("User-Agent", "Mozilla/5.0")
+			seconds := config.TimeoutSeconds
+			if seconds < 1 || seconds > 30 {
+				seconds = 4
+			}
+			quoteCtx, cancel := context.WithTimeout(ctx, time.Duration(seconds)*time.Second)
+			req = req.WithContext(quoteCtx)
+			resp, e := c.http.Do(req)
+			if e != nil {
+				cancel()
+				return nil, errors.New("quote provider unavailable")
+			}
+			data, readError := io.ReadAll(io.LimitReader(resp.Body, 1<<20))
+			resp.Body.Close()
+			cancel()
+			if readError != nil || resp.StatusCode != 200 {
+				return nil, errors.New("quote provider rejected request")
+			}
+			decoded, e := simplifiedchinese.GBK.NewDecoder().Bytes(data)
+			if e != nil {
+				return nil, errors.New("invalid quote text")
+			}
+			for _, line := range strings.Split(string(decoded), ";") {
+				left, right, ok := strings.Cut(strings.TrimSpace(line), "=")
+				if !ok {
+					continue
+				}
+				symbol := strings.TrimPrefix(left, "var hq_str_")
+				name, exists := names[symbol]
+				if !exists {
+					continue
+				}
+				parts := strings.Split(strings.Trim(right, "\"\r\n "), ",")
+				if len(parts) < 32 {
+					continue
+				}
+				price, e := exactPublicPrice(parts[3])
+				when, dateError := time.ParseInLocation("2006-01-02 15:04:05", parts[30]+" "+parts[31], zone)
+				if e != nil || dateError != nil || price <= 0 || price > 100000000 || when.After(time.Now().Add(time.Minute)) {
+					continue
+				}
+				exchange := "SZSE"
+				if strings.HasPrefix(symbol, "sh") {
+					exchange = "SSE"
+				}
+				all = append(all, model.Instrument{Symbol: symbol[2:], Exchange: exchange, Name: name, Price: model.FormatMoney(price), PriceCents: price, ObservedAt: when.UTC(), SourceID: config.ID, SourceVersion: config.Version})
+			}
+		}
+		if len(rows) < 80 {
+			if len(all) == 0 {
+				return nil, errors.New("no valid market quotes")
+			}
+			return all, nil
+		}
+		select {
+		case <-ctx.Done():
+			return nil, ctx.Err()
+		case <-time.After(200 * time.Millisecond):
+		}
+	}
+	return nil, errors.New("market universe exceeds limit")
+}
+func (c *Client) sinaHistory(ctx context.Context, config model.ProviderConfig, symbol, exchange, start, end string) (model.MarketHistory, error) {
+	ticker := "sz" + symbol
+	if exchange == "SSE" {
+		ticker = "sh" + symbol
+	}
+	var envelope struct {
+		Result struct {
+			Status struct{ Code int }
+			Data   []struct{ Day, Open, High, Low, Close string }
+		}
+	}
+	p := url.Values{"symbol": {ticker}, "scale": {"240"}, "ma": {"no"}, "datalen": {"1000"}}
+	result := model.MarketHistory{Symbol: symbol, Exchange: exchange, Source: "sina_public", SourceVersion: config.Version, Adjustment: "unadjusted", ReceivedAt: time.Now().UTC(), Bars: make([]model.HistoricalBar, 0)}
+	if e := c.get(ctx, config.HistoryBaseURL, "/cn/api/openapi.php/CN_MarketDataService.getKLineData", p, &envelope, config.TimeoutSeconds); e != nil {
+		return result, e
+	}
+	if envelope.Result.Status.Code != 0 || len(envelope.Result.Data) == 0 {
+		return result, errors.New("historical provider unavailable")
+	}
+	previous := ""
+	for _, b := range envelope.Result.Data {
+		date := strings.Split(b.Day, " ")[0]
+		if date < start || date > end {
+			continue
+		}
+		_, e := time.Parse("2006-01-02", date)
+		o, e1 := exactPublicPrice(b.Open)
+		h, e2 := exactPublicPrice(b.High)
+		l, e3 := exactPublicPrice(b.Low)
+		v, e4 := exactPublicPrice(b.Close)
+		if e != nil || date <= previous || e1 != nil || e2 != nil || e3 != nil || e4 != nil || l <= 0 || l > o || l > v || h < o || h < v || h > 100000000 {
+			return result, errors.New("invalid provider OHLC")
+		}
+		previous = date
+		result.Bars = append(result.Bars, model.HistoricalBar{Date: date, Open: model.FormatMoney(o), High: model.FormatMoney(h), Low: model.FormatMoney(l), Close: model.FormatMoney(v)})
+	}
+	return result, nil
+}