docs: media model = git files beside articles (Garage S3 dropped); update README/PLAN/maps

PLAN.md

@@ -13,7 +13,7 @@ A news-opinion website ("Kontra Day") with an admin panel. Pages are mainly text
 | **Admin** | **Decap CMS** (at `admin.kontra.day`) | Free, open-source, browser-based UI that edits the same `.md` files directly and commits to git. No custom admin to build/maintain. |
 | **Content source of truth** | **Git repo on Gitea (.35)** | History, rollback, multi-editor sync, off-site backup path. Matches your Gitea/Obsidian habits. |
 | **Templates** | **templ components** chosen per page (front-matter `template:`) | See §6 — page-level → subject-level → site-level → theme fallback. |
-| **Media** | **Garage S3 (on .13)** referenced via `{{media:...}}` shortcodes | Rename/migrate media without touching every article. |
+| **Media** | **Git files beside each article** (`{{media:<slug>/<file>}}`) — Garage S3 dropped 2026-09-10 | Robust, versioned, backed up with content; no object-store auth/sync. |
 | **Colours** | **CSS design tokens** (CSS custom properties), admin-editable values, not code | Per-subject accent colours as data, no template edits. |
 | **Deploy** | **Git push → systemd timer `git pull` every 30s on .13** (no build step; Go renders on request) | Instant content updates; .27 can be offline. Timer chosen over webhook (fewer moving parts). |
 | **Email phase (V)** | Revisit later — Go mail libs or hand off to network tooling | Defer until requirements are real. |