Add application codebase: PDF annotation for e-Court

Next.js 14 + Drizzle/PostgreSQL + SSE realtime sync — highlight,
freehand, comment, bookmark + ฟีเจอร์ต่อยอด F1–F19 (edit/move, undo/redo,
shapes, redaction, export PDF/CSV, reply, resolve, search, summary,
textbox, stamp, version history)

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

tailwind.config.ts

@@ -0,0 +1,16 @@
+import type { Config } from "tailwindcss";
+
+const config: Config = {
+  content: ["./app/**/*.{ts,tsx}", "./components/**/*.{ts,tsx}"],
+  theme: {
+    extend: {
+      colors: {
+        // สีหลักของระบบ (accent ทุกจุด: ปุ่ม active/action, กรอบ selection, หัวข้อหลัก)
+        primary: "rgb(0 51 161 / <alpha-value>)",
+      },
+    },
+  },
+  plugins: [],
+};
+
+export default config;