Shift all neutrals from pure gray to warm-tinted:
- Background: #fafafa → #f8f6f3 (warm off-white, like quality paper)
- Ink: #1a1a1a → #1c1917 (warm dark, like walnut ink)
- Surfaces: warm whites (#fefdfb, #f7f5f2, #f3f1ee)
- Borders/shadows: warm-tinted rgba(28,25,23,...) instead of pure black
- Dark mode: #111111 → #151312 (warm dark, like aged wood)
- Dark ink: #d4d4d4 → #dbd6d0 (warm light)

Still minimalist, still restrained — but now it feels like real
materials instead of a grayscale printout.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

The previous warm-gray palette felt lifeless — all surfaces at the
same warmth level with no temperature contrast. New approach:

Light mode "Sand & Sage":
- Page: #f4f1eb (warm parchment)
- Cards: #fbf9f6 (cream white, lighter than page — creates lift)
- Topbar/sidebar: #edeae4 (sand, darker than page — creates weight)
- Ink: #2a2520 (deep espresso, not pure black)
- Accent: #4a7c6a (sage green, warmer than clinical teal)

Dark mode "Charcoal & Cream":
- Page: #161410 (warm charcoal)
- Cards: #1e1c19 (warmer lift)
- Ink: #d8d2ca (warm cream, not pure gray)
- Accent: #6ab8a0 (soft sage)

The key: surface layers now have visible temperature differences
between them instead of all being the same shade of warm gray.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

This reverts commit 3a58b1c.

When the filesystem watcher fires worktrees-changed, the frontend
calls loadRepoInner → open_repo, which previously always restarted
the watcher. On macOS (FSEvents), creating a new watcher can emit
initial events for existing directory contents, causing an infinite
loop: watcher fires → reload → restart watcher → fires again.

Fix: skip watcher restart if already watching the same repo path.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

- Rename _repo_root → repo_root in WatcherInner (actively used, not
  just held for drop)
- Bump --ink-tertiary opacity 0.4 → 0.46 (light) and 0.42 → 0.48
  (dark) for WCAG AA contrast compliance
- Sync CLAUDE.md and DESIGN_SYSTEM.md color values with actual CSS
  (#f8f6f3 bg, #1c1917 ink, #2e7a6e teal, #fefdfb cards)
- Restore deleted reference sections in DESIGN_SYSTEM.md: typography,
  spacing, transitions, toast, layout constants

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Update intro wording ("warm ink tones" vs "near-monochrome"), fix
launcher icon dark background color (#1c1917), and restore deleted
reference sections (typography, spacing, transitions, toast, layout
constants) that the docs-sync agent wrote after the prior commit.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

The minimalist redesign stripped all per-launcher brand backgrounds,
leaving icons like Claude (white glyph on generic gray) visually broken.
Restore solid brand bg for Claude and subtle brand tints for VS Code,
Codex, Gemini, WezTerm, Alacritty, and Kitty in both light and dark mode.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Add design-system.html — a standalone component showcase accessible at
/design-system.html during dev, with Light/Dark/System toggle. Covers
all tokens (ink, teal, surfaces, semantic), buttons, badges, forms,
cards, launcher icons, file status, diff, commits, toasts, worktree
list, action logs, and typography.

Also tune dark mode CSS variables for better contrast: lift solid
surfaces, bump transparent overlay opacities, strengthen borders and
shadows so elements read clearly on dark backgrounds.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

…w tip

- Add design-system.html preview workflow to CLAUDE.md, AGENTS.md, and
  DESIGN_SYSTEM.md (use Chrome DevTools MCP to verify color changes live)
- Fix UI Layout in CLAUDE.md: tabs moved from topbar to 48px sidebar
- DESIGN_SYSTEM.md: add complete dark mode token tables, fix font stacks,
  fix form control dark bg, add sidebar navigation section, add live preview

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>