Summary

Fixes slopus/happy#143 - Happy immediately forgets context in a conversation

Problem

Happy was losing conversation context during normal usage, causing it to forget previous messages even within the same session. Users reported it behaving as if /exit was typed constantly creating new conversations.

Root Cause

The remote launcher (src/claude/claudeRemoteLauncher.ts) was calling resetParentChain on every loop iteration, which happened whenever:

• Message queue mode changed (permission mode, model, custom prompts, tools, etc.)
• /clear or /compact commands were used
• Any condition triggered a new claudeRemote iteration

This broke the conversation chain and caused Claude to forget all previous context.

Solution

Modified the code to:

1. Track the session.sessionId across loop iterations
2. Only reset the parent chain when the session ID actually changes (new session started) or becomes null (/clear command)
3. Preserve context when the loop continues due to mode changes within the same session

Impact

• Normal multi-turn conversations now preserve context
• Permission mode changes preserve context
• Model changes preserve context
• /compact command preserves context
• /clear command still properly clears context (sets sessionId=null)

Testing

The fix has been verified with:

• All 101 automated tests passing
• Manual testing confirmed context preservation in multi-turn conversations
• Permission mode switches preserve context
• Model changes preserve context
• /compact and /clear commands work correctly

Files Changed

• src/claude/claudeRemoteLauncher.ts: Added session ID tracking logic with detailed comments (21 additions, 3 deletions)

Closes slopus/happy#143