refactor(core): align with cordis spatiotemporal composability architecture

- Purify core micro-kernel by removing context hardcoded helpers and reverse dependencies
- Eliminate init() side effects in infra plugins with reversible lifecycle disposal
- Completely isolate plugins by removing cross-plugin imports and using core/contracts
- Introduce TaskService and RiskControlService contracts for unified cross-plugin APIs
- Regenerate Swagger documentation and update developer guide matrix
- Achieve 0 violations in check_cordis_architecture.sh and 100% test pass

backend/plugins/drivers/driver_http/plugin.go

@@ -16,6 +16,7 @@ import (
 	"github.com/gin-gonic/gin"
 
 	"Wavelet/core"
+	"Wavelet/core/contracts"
 	"Wavelet/pkg/util"
 )
 
@@ -97,6 +98,19 @@ func (p *Plugin) Apply(ctx *core.Context) error {
 	p.coreCtx = ctx
 	p.mu.Unlock()
 
+	// Bind DBService from Context
+	if db, err := core.Inject[contracts.DBService](ctx); err == nil && db != nil {
+		setDBService(db)
+	} else {
+		core.When[contracts.DBService](ctx, func(db contracts.DBService) {
+			setDBService(db)
+		})
+	}
+	ctx.OnDispose(func() error {
+		setDBService(nil)
+		return nil
+	})
+
 	ctx.OnDispose(func() error {
 		shutdownCtx, cancel := context.WithTimeout(context.Background(), p.shutdownTimeout)
 		defer cancel()