refactor(api): remove deprecated route module interfaces

internal/api/modules/modules.go

@@ -1,92 +0,0 @@
-// Package modules provides a pluggable routing module system for extending
-// the API server with optional features without modifying core routing logic.
-package modules
-
-import (
-	"fmt"
-
-	"github.com/gin-gonic/gin"
-	"github.com/router-for-me/CLIProxyAPI/v7/internal/config"
-	"github.com/router-for-me/CLIProxyAPI/v7/sdk/api/handlers"
-)
-
-// Context encapsulates the dependencies exposed to routing modules during
-// registration. Modules can use the Gin engine to attach routes, the shared
-// BaseAPIHandler for constructing SDK-specific handlers, and the resolved
-// authentication middleware for protecting routes that require API keys.
-type Context struct {
-	Engine         *gin.Engine
-	BaseHandler    *handlers.BaseAPIHandler
-	Config         *config.Config
-	AuthMiddleware gin.HandlerFunc
-}
-
-// RouteModule represents a pluggable routing module that can register routes
-// and handle configuration updates independently of the core server.
-//
-// DEPRECATED: Use RouteModuleV2 for new modules. This interface is kept for
-// backwards compatibility and will be removed in a future version.
-type RouteModule interface {
-	// Name returns a human-readable identifier for the module
-	Name() string
-
-	// Register sets up routes and handlers for this module.
-	// It receives the Gin engine, base handlers, and current configuration.
-	// Returns an error if registration fails (errors are logged but don't stop the server).
-	Register(engine *gin.Engine, baseHandler *handlers.BaseAPIHandler, cfg *config.Config) error
-
-	// OnConfigUpdated is called when the configuration is reloaded.
-	// Modules can respond to configuration changes here.
-	// Returns an error if the update cannot be applied.
-	OnConfigUpdated(cfg *config.Config) error
-}
-
-// RouteModuleV2 represents a pluggable bundle of routes that can integrate with
-// the API server without modifying its core routing logic. Implementations can
-// attach routes during Register and react to configuration updates via
-// OnConfigUpdated.
-//
-// This is the preferred interface for new modules. It uses Context for cleaner
-// dependency injection and supports idempotent registration.
-type RouteModuleV2 interface {
-	// Name returns a unique identifier for logging and diagnostics.
-	Name() string
-
-	// Register wires the module's routes into the provided Gin engine. Modules
-	// should treat multiple calls as idempotent and avoid duplicate route
-	// registration when invoked more than once.
-	Register(ctx Context) error
-
-	// OnConfigUpdated notifies the module when the server configuration changes
-	// via hot reload. Implementations can refresh cached state or emit warnings.
-	OnConfigUpdated(cfg *config.Config) error
-}
-
-// RegisterModule is a helper that registers a module using either the V1 or V2
-// interface. This allows gradual migration from V1 to V2 without breaking
-// existing modules.
-//
-// Example usage:
-//
-//	ctx := modules.Context{
-//	    Engine:         engine,
-//	    BaseHandler:    baseHandler,
-//	    Config:         cfg,
-//	    AuthMiddleware: authMiddleware,
-//	}
-//	if err := modules.RegisterModule(ctx, ampModule); err != nil {
-//	    log.Errorf("Failed to register module: %v", err)
-//	}
-func RegisterModule(ctx Context, mod interface{}) error {
-	// Try V2 interface first (preferred)
-	if v2, ok := mod.(RouteModuleV2); ok {
-		return v2.Register(ctx)
-	}
-
-	// Fall back to V1 interface for backwards compatibility
-	if v1, ok := mod.(RouteModule); ok {
-		return v1.Register(ctx.Engine, ctx.BaseHandler, ctx.Config)
-	}
-
-	return fmt.Errorf("unsupported module type %T (must implement RouteModule or RouteModuleV2)", mod)
-}