fix(context-injector): inject via chat.message after claudeCodeHooks

- Revert messages.transform-only approach (experimental hook unreliable)
- Inject context in chat.message after claudeCodeHooks runs
- Order: keywordDetector → claudeCodeHooks → contextInjector
- Works independently of claude-code-hooks being enabled/disabled
- Ultrawork content now reliably injected to model

src/index.ts

@@ -33,6 +33,7 @@ import {
 } from "./hooks";
 import {
   contextCollector,
+  createContextInjectorHook,
   createContextInjectorMessagesTransformHook,
 } from "./features/context-injector";
 import { createGoogleAntigravityAuthPlugin } from "./auth/antigravity";
@@ -166,6 +167,7 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
   const keywordDetector = isHookEnabled("keyword-detector")
     ? createKeywordDetectorHook(ctx, contextCollector)
     : null;
+  const contextInjector = createContextInjectorHook(contextCollector);
   const contextInjectorMessagesTransform =
     createContextInjectorMessagesTransformHook(contextCollector);
   const agentUsageReminder = isHookEnabled("agent-usage-reminder")
@@ -312,8 +314,8 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
 
     "chat.message": async (input, output) => {
       await keywordDetector?.["chat.message"]?.(input, output);
-      // NOTE: context injection moved to messages.transform to avoid mutating UI
       await claudeCodeHooks["chat.message"]?.(input, output);
+      await contextInjector["chat.message"]?.(input, output);
       await autoSlashCommand?.["chat.message"]?.(input, output);
       await startWork?.["chat.message"]?.(input, output);