fix: reset isCompacting state on new session

[avoidwork]

Description

The context size indicator in the status bar stays red (compacting color) after starting a new session. It should reset to the default gray color.

Root cause: handleNewSession() in src/tui/app.js resets messages, chatHistory, contextSize, and statusMessage — but does not reset isCompacting state.

Fix: Added setIsCompacting(false) to handleNewSession().

Type of Change

• Bugfix (non-breaking change which fixes an issue)

Testing

• All 1132 existing tests pass with no regressions
• Manual verification: trigger context compaction, start new session, confirm indicator returns to gray

Coverage

• 100% line coverage maintained

Checklist

• npm run lint passes (0 warnings, 0 errors)
• Tests pass with 100% line coverage
• No forbidden patterns used
• Conventional Commit style applied

Files Changed

• src/tui/app.js — Added setIsCompacting(false) to handleNewSession()
• OpenSpec change artifacts archived

Related

Fixes #255

[avoidwork]

Audit Results: Fix Context Size Indicator Color on New Session

Implementation Audit (Step 8)

Goal Fulfillment

• ✅ Goal 1 (Reset isCompacting State on New Session): Fully implemented — setIsCompacting(false) added to handleNewSession()

Spec Compliance

• ✅ Implementation matches the design document exactly — single-line state reset
• ✅ Tasks all completed as specified

Task Completion

• ✅ 1.1: setIsCompacting(false) added to handleNewSession() in src/tui/app.js
• ✅ 2.1: All 1132 tests pass
• ✅ 2.2: Lint passes with 0 warnings, 0 errors

Quality Check

• ✅ No obvious issues, missing edge cases, or inconsistencies
• ✅ Fix is minimal, targeted, and follows existing code patterns

Result: No errors found. Implementation complete and verified.