feat(config): add experimental config for gating unstable features (#110)

* feat(anthropic-auto-compact): add aggressive truncation and empty message recovery

Add truncateUntilTargetTokens method, empty content recovery mechanism, and
emptyContentAttemptBySession tracking for robust message handling.

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

* feat(session-recovery): add auto-resume and recovery callbacks

Implement ResumeConfig, resumeSession() method, and callback support for
enhanced session recovery and resume functionality.

🤖 GENERATED WITH ASSISTANCE OF [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

* feat(config): add experimental config schema for gating unstable features

This adds a new 'experimental' config field to the OhMyOpenCode schema that enables fine-grained control over unstable/experimental features:

- aggressive_truncation: Enables aggressive token truncation in anthropic-auto-compact hook for more aggressive token limit handling
- empty_message_recovery: Enables empty message recovery mechanism in anthropic-auto-compact hook for fixing truncation-induced empty message errors
- auto_resume: Enables automatic session resume after recovery in session-recovery hook for seamless recovery experience

The experimental config is optional and all experimental features are disabled by default, ensuring backward compatibility while allowing early adopters to opt-in to cutting-edge features.

🤖 Generated with assistance of [OhMyOpenCode](https://github.com/code-yeongyu/oh-my-opencode)

src/index.ts

@@ -177,7 +177,7 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
     ? createContextWindowMonitorHook(ctx)
     : null;
   const sessionRecovery = isHookEnabled("session-recovery")
-    ? createSessionRecoveryHook(ctx)
+    ? createSessionRecoveryHook(ctx, { experimental: pluginConfig.experimental })
     : null;
   const sessionNotification = isHookEnabled("session-notification")
     ? createSessionNotification(ctx)
@@ -212,7 +212,7 @@ const OhMyOpenCodePlugin: Plugin = async (ctx) => {
     disabledHooks: (pluginConfig.claude_code?.hooks ?? true) ? undefined : true,
   });
   const anthropicAutoCompact = isHookEnabled("anthropic-auto-compact")
-    ? createAnthropicAutoCompactHook(ctx)
+    ? createAnthropicAutoCompactHook(ctx, { experimental: pluginConfig.experimental })
     : null;
   const rulesInjector = isHookEnabled("rules-injector")
     ? createRulesInjectorHook(ctx)