feat(capture): identify hashed fonts via OpenType name table

Modern frameworks (Next.js, Webpack) hash font filenames like
`f9b8e1e8d4c3f0a7-s.woff2`, so the capture pipeline can't tell which
file belongs to which family by reading the filename. Sub-agents
authoring DESIGN.md were guessing or falling back to system fonts.

This adds `fontMetadataExtractor.ts`: reads the binary OpenType `name`
table via `fontkit`, identifies each downloaded font by its real
family name, and writes `capture/extracted/fonts-manifest.json` with
per-file metadata + per-family aggregates (weights, variable-font
axes, file counts).

- Canonicalizes static-weight family-name packaging: "Inter Medium"
  resolves to family "Inter" with weight 500, "Semi Bold" normalizes
  to "SemiBold", etc. Width modifiers ("Tight", "Condensed") are NOT
  stripped — they denote separate typographic families.
- Reads variable-font axes from `fvar` so a single .woff2 carrying a
  full weight range is identified as variable (e.g. "Inter (100-900
  variable)").
- Uses `@types/fontkit` properly (no `unknown` cast), with a
  Font/FontCollection type guard. fontkit API drift surfaces as a
  compile error rather than silent undefined.
- Wired into `capture/index.ts` after `downloadAndRewriteFonts` so it
  runs after fonts are already on disk. Non-fatal try/catch — capture
  succeeds even if extraction fails.

Tested against 9 captures: 132/132 fonts identified by real family
name, including hashed Next.js builds.

Author: ukimsanov

bun.lock

@@ -30,14 +30,15 @@
     "citty": "^0.2.1",
     "compare-versions": "^6.1.1",
     "esbuild": "^0.25.12",
+    "fontkit": "^2.0.4",
     "giget": "^3.2.0",
     "hono": "^4.0.0",
     "onnxruntime-node": "^1.20.0",
     "open": "^10.0.0",
     "postcss": "^8.5.8",
     "prettier": "^3.8.1",
     "puppeteer-core": "^24.39.1",
-    "sharp": "^0.34.0"
+    "sharp": "^0.34.5"
   },
   "devDependencies": {
     "@clack/prompts": "^1.1.0",
@@ -47,6 +48,7 @@
     "@hyperframes/producer": "workspace:*",
     "@hyperframes/studio": "workspace:*",
     "@types/adm-zip": "^0.5.7",
+    "@types/fontkit": "^2.0.9",
     "@types/mime-types": "^3.0.1",
     "@types/node": "^25.0.10",
     "linkedom": "^0.18.12",