Watch .claude/plans/ in each worktree for markdown plan files and
render them in a Plan tab next to Notes. Includes fullscreen dialog,
showPlans setting toggle, and fs.watch with debounced updates.

Add fireAndForget() wrapper to ipc.ts that logs errors and accepts an
optional onError callback. Replace 5 fire-and-forget invoke() calls that
caused unhandled promise rejections:
- TerminalView: WriteToAgent, ResizeAgent, KillAgent (log-only)
- BattleScreen: KillAgent (shows user notification on failure)
- PromptInput: WriteToAgent (log-only)

Pin HEAD to immutable SHA before computing merge-base and diffs, so
concurrent commits can't cause files to be misclassified as
committed/uncommitted. Read committed file content from git objects
instead of disk for consistent diff display.

- Extract pinHead() helper, pass pinned hash to detectMergeBase()
- Use git diff base..HEAD (two commits) instead of diffing working tree
- Read newContent from git show HEAD:file, fall back to disk only for
  uncommitted changes
- Preserve actual status letters (D/A/R) for uncommitted-only files
- Pass projectRoot/branchName fallback props to DiffViewerDialog

Sidebar button now always opens the ConnectPhoneModal instead of
directly calling stopRemoteAccess() when clients are connected.
Disconnect is only possible via the explicit button inside the modal.
Closes #11.

* task/issue-11:
  fix(remote): decouple modal close from remote server disconnect

…ttings.json

Avoids modifying the committed settings.json file — local settings
belong in settings.local.json which is gitignored.

Files tracked in HEAD but deleted locally were showing "No changes"
because hasUncommittedChanges required fileExistsOnDisk to be true.
Detect uncommitted deletions separately, generate deletion pseudo-diffs,
and surface errors instead of silently returning empty results.

* task/plan-detection-is-not-working-for:
  fix(plans): add warning log for shallow-symlink read failures
  fix(plans): shallow-symlink .claude dir to isolate plans per worktree

The changed line counts showed total file lines as added and zero as
removed for uncommitted tracked files. This happened because the code
read the entire file and counted all lines instead of using git diff.

- Use `git diff --numstat HEAD` for tracked uncommitted files to get
  actual added/removed line counts
- Keep counting all lines as added for untracked (new) files
- Only run the extra git command when tracked uncommitted files exist
- Fix trailing newline overcount for untracked file line counting

* task/the-changed-line-code-always-shows-the:
  fix(git): use actual diff stats for uncommitted tracked files

…iguation

Display filenames prominently instead of full paths. For duplicate
filenames, show the shortest disambiguating parent directory suffix
in dimmed text. Full path available via tooltip on hover.

When an agent exits, the Restart button now has a dropdown arrow that
lets users pick a different agent to restart with. Selecting a different
agent swaps the AgentDef and starts fresh; selecting the same agent
behaves like a normal restart.

Lift background, border, and text values slightly across the minimal
preset to improve contrast and readability in bright environments.

- Add explicit refetch of branch log, merge status, and worktree
  status each time the dialog opens (defensive safety net)
- Show short commit hashes in the commit list so freshness is
  visually verifiable, especially after rebase
- Strip hashes from squash commit message text