Add TypeScript theme generator for doki-master-theme palettes

Generates one Gitea-compatible CSS theme file per doki-master-theme
definition (88 themes). Each file contains a gitea-theme-meta-info
block and a :root block with the full set of CSS custom properties
derived from the character's colour palette.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

tsconfig.json

@@ -0,0 +1,10 @@
+{
+  "compilerOptions": {
+    "target": "ES2022",
+    "module": "NodeNext",
+    "moduleResolution": "NodeNext",
+    "strict": true,
+    "outDir": "./dist"
+  },
+  "include": ["generate.ts", "src/**/*.ts"]
+}