Cleanup assets

docs/guides/static-assets.md

@@ -0,0 +1,58 @@
+# Static assets (`public/`)
+
+Convention for files served from `public/`. Path helpers live in
+[`lib/assetUtils.ts`](../../lib/assetUtils.ts).
+
+## Folder map
+
+```
+public/
+  assets/
+    icons/              # UI chrome (alert, close, help, pointer)
+    logos/              # Brand + social lockups
+      partners/         # Logo wall partner PNGs
+    marketing/          # Hero, feature panels, section numbers, avatars, banners, book cover
+    case-study/         # CaseStudy card SVG artwork (canonical)
+    shapes/             # Decorative ornaments (stats, quotes, unions, content shapes)
+    vector/             # Use-case group marks
+    template-mark/      # Governance template SVG marks
+    share/              # Share modal channel glyphs
+  content/
+    blog/               # Per-article SVG thumbnails (see content-creation.md)
+```
+
+## Naming rules
+
+- **Directories and filenames:** lowercase kebab-case only.
+- **No** PascalCase folders (`Section/`, `Share/`) or Figma-export names
+  at the assets root (`Feature_Support.png`, `Icon_Alert.svg`).
+- **Prefer** `lib/assetUtils.ts` helpers (`partnerLogoPath`,
+  `shareIconPath`, `featurePanelPath`, `ASSETS`, …) over hardcoded
+  `/assets/...` strings in components.
+- **Blog art** stays under `public/content/blog/` with
+  `{slug}-vertical.svg`, `-horizontal.svg`, `-section.svg`, `-tag.svg`.
+
+## PNG files and `.gitignore`
+
+`*.png` is listed in `.gitignore`, but marketing and partner PNGs remain
+**git-tracked** from before that rule. New PNGs may need `git add -f` to
+stage. Raster → SVG conversion is tracked in
+[CR-25](https://linear.app/community-rule/issue/CR-25).
+
+## PNG audit (handoff to CR-25)
+
+| Path | Used by | Disposition |
+| --- | --- | --- |
+| `logos/partners/*.svg` (×6) | LogoWall | **Done** — SVG (kebab org slug, no `logo-` prefix) |
+| `marketing/feature-*.png` (×4) | FeatureGrid | **Design review** — convert if vector in Figma, else keep raster |
+| `marketing/section-number-*.svg` (×3) | SectionNumber | **Done** — SVG |
+| `marketing/avatar-*.svg` (×3) | Avatar / ASSETS | **Done** — SVG |
+| `marketing/hero-image.png` | HeroBanner | **Design review** — likely keep raster |
+| `logos/gitlab.svg` | Footer / social | **Done** — SVG |
+
+## Related docs
+
+- [figma-component-registry.md](../figma-component-registry.md) — Figma Asset
+  canvas ↔ `app/components/asset/` and `template-mark/` / `vector/`.
+- [content-creation.md](./content-creation.md) — Blog SVG naming under
+  `public/content/blog/`.