v0.1.0

Added

• Two-pane git view (grouped file list + structured diff) opened by one
  herdr action / keybinding; per-repo state, multiple repos concurrently;
  the toggle focuses the view from other tabs and closes it from inside.
• VSCode-style sections (merge conflicts / staged / changes); a partially
  staged file appears in both, and the section decides which diff is shown.
• Structured diff renderer: syntax highlighting (syntect + two-face),
  red/green line tints, word-level change emphasis, line-number gutter,
  click-to-expand context folds, dark and light themes.
• Real-PTY editor loop: Enter opens nvim on the diff pane at the first
  changed line; remote file switching while nvim is open; graceful close
  with a save/discard dialog when quitting with unsaved changes.
• Stage/unstage (s/u), discard with confirmation (x), commit with
  the message written in nvim (c).
• Commit history view (l): commit list → per-commit files → diffs.
• Review notes: visual line selection (v/mouse drag), annotate (a),
  batched notes with inline cards and a notes view (n), edit/delete,
  and sending to an AI agent pane in the workspace (p) with the diff
  snippet attached.
• Native herdr floating popup dialogs (herdr ≥ 0.7.4) with in-pane
  fallbacks; full mouse support in both panes.
• Worktree ↔ branch scope, auto-refresh via status fingerprint polling,
  width-aware footers, standalone herdr-gitview list mode.
• Release packaging: platform binaries with checksum-verified installer
  and source-build fallback.