feat(market): Phase 1 扩展 — 更多 symbol + Bollinger/Vegas + 衍生品信号

- collector.symbols 与 supportedSymbols 加 SOL/BNB/DOGE，env-default 与 README 同步
- entity 追加 TechnicalStructure.Intervals（每周期 Bollinger + Vegas，omitempty 不破坏既有字段）与 DerivativesBundle.Signal
- 新增纯解析 usecase derivatives_signal.go：fundingBias 绝对阈值、oiSignal 用 P20 baseline + 价格方向（OI up + 价格 up/down → long/short_building，funding 不参与方向）、lsrRegime 绝对阈值；signal 数据不足走 warnings 进 DataQuality
- indicator.go 加 sma/stddev/ema/bollinger/vegas + computeIntervalTechnicals；IndicatorComputer 签名收 klines map
- harness 同步：G12 扩入 derivatives_signal.go（含 Makefile G12.5/6 + ADR-0002 适用范围 + project-map / harness-health 更新）

Makefile

@@ -31,9 +31,11 @@ guard:
 	@echo "G1 (no signing)..."   && ! grep -rqi --include="*.go" "apikey\|x-mbx-apikey\|hmac\|secret_key\|api_secret" .
 	@echo "G6 (boundary)..."     && ! grep -rq "repo/webapi/binance\|repo/persistent" internal/usecase internal/controller
 	@echo "G11 (ctrl derivs)..." && ! grep -rqn "FundingRepo\|OIRepo\|LSRepo\|TakerRepo" internal/controller
-	@echo "G12.1 (usecase float)..." && ! { grep -rn --include="*.go" "float64\|float32" internal/usecase | grep -v indicator | grep -q . ; }
+	@echo "G12.1 (usecase float)..." && ! { grep -rn --include="*.go" "float64\|float32" internal/usecase | grep -vE "indicator|derivatives_signal" | grep -q . ; }
 	@echo "G12.2 (indicator no repo)..." && ! grep -q "internal/repo" internal/usecase/indicator.go
 	@echo "G12.3 (indicator no DB)..."   && ! grep -qE "binance|postgres|pgx" internal/usecase/indicator.go
+	@echo "G12.5 (derivatives_signal no repo)..." && ! grep -q "internal/repo" internal/usecase/derivatives_signal.go
+	@echo "G12.6 (derivatives_signal no DB)..." && ! grep -qE "binance|postgres|pgx" internal/usecase/derivatives_signal.go
 	@echo "G12.4 (entity no float)..."   && ! grep -rqn --include="*.go" "float64\|float32" internal/entity
 	@echo "G13.1 (compose requires password)..." && grep -qx 'POSTGRES_PASSWORD=' .env.example
 	@echo "G13.2 (compose fixed app port)..." && grep -q 'APP_HOST_PORT' docker-compose.yml && grep -q 'APP_PORT: "8080"' docker-compose.yml && ! grep -q '$${APP_PORT' docker-compose.yml