v0.4.0 — Watch mode, dirty filter & man page

Added

• gitls -w / --watch — watch mode: refreshes the status table in place at a
  configurable interval (default 3 s, e.g. -w 10). Uses the alternate screen
  buffer so scrollback is left untouched, hides the cursor, and quits on q or
  Ctrl-C. The terminal is always restored on exit, including on SIGINT /
  SIGTERM. No ncurses dependency — raw ANSI escapes and termios only.
  Interactive keys act on the whole tree without leaving the view: f fetch,
  p pull, s switch, r refresh now. The s key opens a branch picker that
  lists recently active branches (most recent first) with type-to-filter, ↑/↓
  navigation and Tab/Enter selection.
• gitls --dirty — list only repos that are not clean and in sync (staged /
  modified / untracked files, ahead/behind, diverged or detached HEAD). The
  summary line still counts all scanned repos and appends (N hidden). Works in
  one-shot mode and under -w.
• ~/.gitlsrc keys watch_interval and dirty_only; CLI flags override them
  (--no-dirty opts out of dirty_only for a single run).
• gitls(1) man page, installed by make install and packaged in the RPM. The
  install/uninstall targets now honour DESTDIR for packaging.

Fixed

• Long branch names (or any over-wide row) no longer wrap and corrupt the table:
  the NAME / BRANCH columns are now capped to the terminal width (content is
  truncated with ~). Affects both the one-shot table and watch mode. Piped
  output is still emitted at full width. Over-long Scanned: / footer paths are
  shortened with a leading ….

• Watch mode no longer corrupted the table when a refresh produced a narrower
  frame (e.g. switching to a shorter branch name) — each rewritten line is now
  cleared to its end, so no stale columns (a duplicate WHEN/STATUS) are left
  behind. The table also stays on screen while an action runs.

Changed

• Watch mode now animates a spinner with the action verb (Fetching / Pulling /
  Switching) while a fetch / pull / switch runs, instead of a static line.