v1: delete old repo, initalize monorepo structure, config, database, and api packages basic setup

apps/api/package.json

@@ -0,0 +1,22 @@
+{
+  "name": "@concord/api",
+  "scripts": {
+    "dev": "bun run --hot src/index.ts",
+    "build": "bun build src/index.ts",
+    "start": "bun src/index.ts",
+    "lint": "biome lint .",
+    "format": "biome format --write .",
+    "typecheck": "tsc --noEmit"
+  },
+  "dependencies": {
+    "@concord/database": "workspace:*",
+    "@hono/zod-validator": "^0.7.3",
+    "hono": "^4.9.10",
+    "zod": "^4.1.12"
+  },
+  "devDependencies": {
+    "@types/bun": "latest",
+    "@concord/biome-config": "workspace:*",
+    "@concord/tsconfig": "workspace:*"
+  }
+}