UI overhaul "Living Codex" A: tokens + fonts

- Replace the design tokens in globals.css with the Living Codex system (parchment
  light · candlelit dark, gilt accent), keeping every existing --app-*/utility name
  so nothing breaks. Adds surface-2/panel-2/line-strong/ink-soft/faint/accent-deep/
  accent-soft/accent-glow/verdigris + --app-accent-hue (one-number reskin) and
  paper-grain/gilt-rule/smallcaps helpers.
- Self-host the type system via @fontsource (offline-safe, no CDN/CSP change):
  Spectral (serif headings), Hanken Grotesk (UI), Spline Sans Mono (stats).
- Kept: dice/crit animations, print rule, reduced-motion, scrollbars.

223 unit + 34 e2e green; no console errors.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

bun.lock

@@ -5,6 +5,9 @@
     "": {
       "name": "ttrpg-manager",
       "dependencies": {
+        "@fontsource-variable/hanken-grotesk": "^5.2.8",
+        "@fontsource-variable/spline-sans-mono": "^5.2.8",
+        "@fontsource/spectral": "^5.2.8",
         "@tanstack/react-router": "^1.95.0",
         "@tanstack/react-virtual": "^3.14.2",
         "clsx": "^2.1.1",
@@ -345,6 +348,12 @@
 
     "@fastify/websocket": ["@fastify/websocket@11.2.0", "", { "dependencies": { "duplexify": "^4.1.3", "fastify-plugin": "^5.0.0", "ws": "^8.16.0" } }, "sha512-3HrDPbAG1CzUCqnslgJxppvzaAZffieOVbLp1DAy1huCSynUWPifSvfdEDUR8HlJLp3sp1A36uOM2tJogADS8w=="],
 
+    "@fontsource-variable/hanken-grotesk": ["@fontsource-variable/hanken-grotesk@5.2.8", "", {}, "sha512-K7hu09ZKReBc7EifRLeM4K94NZBrxFEg0nGcISmVwlFQOJo4EmYkLXTWEwr5JcNW4z2hr5zy8vLS2sxC8JDmrQ=="],
+
+    "@fontsource-variable/spline-sans-mono": ["@fontsource-variable/spline-sans-mono@5.2.8", "", {}, "sha512-Z1yYiEtP+8Gll5BJaR9dICK/ZTxoTWH+ZBH6rOTMWajPSOxwl7IZplkwX2J1QhMxqulhhdMrkRx6SkkLM+jLQw=="],
+
+    "@fontsource/spectral": ["@fontsource/spectral@5.2.8", "", {}, "sha512-0CqZ8/z8A38BdeSz5t2NSd5tCO1R9P1k7SF2VpRLMbZTMSSR6+2Dk0ZBMfEQK/IrBLQS1HgHLMqpdTwRpnKpGQ=="],
+
     "@humanfs/core": ["@humanfs/core@0.19.2", "", { "dependencies": { "@humanfs/types": "^0.15.0" } }, "sha512-UhXNm+CFMWcbChXywFwkmhqjs3PRCmcSa/hfBgLIb7oQ5HNb1wS0icWsGtSAUNgefHeI+eBrA8I1fxmbHsGdvA=="],
 
     "@humanfs/node": ["@humanfs/node@0.16.8", "", { "dependencies": { "@humanfs/core": "^0.19.2", "@humanfs/types": "^0.15.0", "@humanwhocodes/retry": "^0.4.0" } }, "sha512-gE1eQNZ3R++kTzFUpdGlpmy8kDZD/MLyHqDwqjkVQI0JMdI1D51sy1H958PNXYkM2rAac7e5/CnIKZrHtPh3BQ=="],