Enable /review and /connect:chatgpt in Freebuff

- Remove 'review' from FREEBUFF_REMOVED_COMMAND_IDS and FREEBUFF_REMOVED_COMMANDS
- Enable CHATGPT_OAUTH_ENABLED flag

Author: jahooma

cli/src/commands/command-registry.ts

@@ -174,7 +174,6 @@ const FREEBUFF_REMOVED_COMMANDS = new Set([
   'publish',
   'gpt-5-agent',
   'connect:claude',
-  'review',
 ])
 
 const ALL_COMMANDS: CommandDefinition[] = [

cli/src/data/slash-commands.ts

@@ -39,7 +39,6 @@ const FREEBUFF_REMOVED_COMMAND_IDS = new Set([
   'refer-friends',
   'usage',
   'subscribe',
-  'review',
   'agent:gpt-5',
   'image',
   'publish',

common/src/constants/chatgpt-oauth.ts

@@ -6,7 +6,7 @@
  * Feature flag for ChatGPT OAuth (connect:chatgpt) functionality.
  * Default OFF until validated.
  */
-export const CHATGPT_OAUTH_ENABLED = false
+export const CHATGPT_OAUTH_ENABLED = true
 
 /** OAuth client id used by Codex-compatible OAuth ecosystems. */
 export const CHATGPT_OAUTH_CLIENT_ID = 'app_EMoamEEZ73f0CkXaXp7hrann'