docs(agent): vendor-neutral agent docs — AGENTS.md entry, agent/ SoT, .claude shims

The repo is maintained by agents from multiple vendors, so agent
instructions move out of vendor-specific locations into shared,
git-tracked markdown:

- AGENTS.md is the new entry point for any harness; CLAUDE.md becomes a
  symlink to it (Claude Code keeps working unchanged).
- Skill bodies relocate to agent/: VERIFICATION.md (the enforcement
  rules, ex .claude/skills/nomarchy), DELEGATION.md (capability tiers
  light/standard/frontier, scout/runner role contracts, token economy,
  parallel fan-out — consolidates the CLAUDE.md model table, LOOP.md's
  economy section, and skill §6.5 into one place; vendor model names
  survive only in the per-harness mapping table), THEME-DESIGN.md
  (ex .claude/skills/theme, which previously lacked frontmatter).
- .claude/ shrinks to a thin Claude Code adapter: settings, subagent
  defs, and skill shims that route into agent/.
- Maps updated: agent/README.md (instructions vs state vs adapters),
  docs/README.md, README.md layout tree.

Cleanup: stale old_distro .gitignore entry dropped (dir long gone);
local result*/__pycache__ artifacts removed; JOURNAL.md rotated (29
recent entries kept, 120 older moved to agent/JOURNAL-ARCHIVE.md,
rotation rule documented in the header).

Verification: V0 (docs/meta only) — nix flake check --no-build exit 0
with the tracked symlink; grep sweep confirms no vendor model names
outside DELEGATION.md's mapping table.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

agent/THEME-DESIGN.md

@@ -0,0 +1,49 @@
+# Theme design — instructions for visual work
+
+For creating, updating, refining, or troubleshooting Nomarchy themes and
+visual design. Act as an experienced UI/UX designer and Linux ricing
+expert for Wayland environments: themes here must be cohesive,
+intentional, and visually striking — aesthetics are a load-bearing
+feature of this distro (`agent/GOALS.md` pillar 4).
+
+## Context & architecture
+
+All theme data lives in `themes/` at the repo root — one JSON palette per
+theme plus per-app assets (whole-swap `waybar.jsonc`/CSS, btop themes,
+wallpapers). Before generating any new configuration, read the existing
+files there: learn how current themes are structured, how the syntax is
+formatted for each application, and how they integrate into the NixOS/HM
+modules. Always match the established pattern — there is no second
+theming pipeline (`agent/GOALS.md` non-goals), so a new visual surface
+consumes the palette from the state JSON, never a side file.
+
+## Design responsibilities
+
+1. **Holistic design:** a theme spans Hyprland (borders, shadows,
+   animations), Waybar, Ghostty, btop, fastfetch, rofi, and wallpaper —
+   one coherent identity, no unthemed corner.
+2. **Color theory:** create or adapt advanced palettes. Draw inspiration
+   from established aesthetics (Everforest, Nord, Gruvbox) or r/unixporn
+   trends, but innovate. Ensure harmony between background, foreground,
+   accents, and warning/error colors.
+3. **Typography & iconography:** pair UI and monospace fonts and icon
+   themes to the specific vibe of the palette.
+4. **Accessibility:** high contrast for text readability; status
+   information is never color-only (see `agent/MEMORY.md` design
+   invariants — glyph/shape carries state, and identity themes are
+   deliberately not traffic-lights).
+
+## Process
+
+1. Read `themes/` to understand the current structure.
+2. State the "vibe", the primary palette (hex codes), and typography
+   choices of the proposed design before implementing.
+3. Implement by generating or updating files within the `themes/`
+   structure, following `agent/CONVENTIONS.md` (Waybar parity rule:
+   whole-swap `waybar.jsonc` files stay in sync with the generated
+   config).
+4. Verify per `agent/VERIFICATION.md` §3 — scripted checks first
+   (`tools/check-theme-contrast.py`, `tools/audit-theme-design.py`), then
+   headless before/after screenshots you actually view, under at least
+   two themes. New themes are imported via `tools/import-palettes.py` and
+   round-tripped through the theme switcher.