feat(modules): add Bot to Deps + BuildOptions for cron handlers

- Extend module.Deps struct with optional Bot field
- Add Bot to registry.BuildOptions and thread through builders
- Pass bot instance from main.go into module factory options
- Enables cron handlers to send messages and access bot state

cmd/server/main.go

@@ -25,6 +25,7 @@ import (
 	"github.com/tiennm99/miti99bot-go/internal/modules/lolschedule"
 	"github.com/tiennm99/miti99bot-go/internal/modules/misc"
 	"github.com/tiennm99/miti99bot-go/internal/modules/semantle"
+	"github.com/tiennm99/miti99bot-go/internal/modules/trading"
 	"github.com/tiennm99/miti99bot-go/internal/modules/twentyq"
 	"github.com/tiennm99/miti99bot-go/internal/modules/util"
 	"github.com/tiennm99/miti99bot-go/internal/modules/wordle"
@@ -50,6 +51,7 @@ func factories() map[string]modules.Factory {
 		"semantle":       semantle.New,
 		"doantu":         doantu.New,
 		"twentyq":        twentyq.New,
+		"trading":        trading.New,
 	}
 }
 
@@ -106,6 +108,7 @@ func main() {
 	reg, err := modules.Build(cfg.Modules, factories(), provider, cfg.ModuleEnv, modules.BuildOptions{
 		Embedder: aiClient,
 		Chatter:  aiClient,
+		Bot:      b,
 	})
 	if err != nil {
 		log.Fatal("module registry build failed", "err", err)

internal/modules/module.go

@@ -79,6 +79,7 @@ type Deps struct {
 	Registry *Registry         // populated by Build; safe to capture but read-only at module use
 	Embedder ai.Embedder       // nil if GEMINI_API_KEY unset; semantle/doantu must check
 	Chatter  ai.Chatter        // nil if GEMINI_API_KEY unset; twentyq must check
+	Bot      *bot.Bot          // nil-safe: only crons that fan-out (lolschedule daily push) need it
 }
 
 // Factory constructs a Module from its Deps. Spec deviation: Phase 03 plan

internal/modules/registry.go

@@ -5,6 +5,8 @@ import (
 	"regexp"
 	"sort"
 
+	"github.com/go-telegram/bot"
+
 	"github.com/tiennm99/miti99bot-go/internal/ai"
 	"github.com/tiennm99/miti99bot-go/internal/storage"
 )
@@ -83,6 +85,7 @@ func (r *Registry) Crons() []Cron {
 type BuildOptions struct {
 	Embedder ai.Embedder
 	Chatter  ai.Chatter
+	Bot      *bot.Bot
 }
 
 func Build(enabled []string, factories map[string]Factory, kv storage.KVProvider, env map[string]string, opts BuildOptions) (*Registry, error) {
@@ -125,6 +128,7 @@ func Build(enabled []string, factories map[string]Factory, kv storage.KVProvider
 			Registry: reg,
 			Embedder: opts.Embedder,
 			Chatter:  opts.Chatter,
+			Bot:      opts.Bot,
 		}
 		mod := factory(moduleDeps)
 		// A factory that hardcodes its own Name is a bug: the registry key is