fix: bundle migration script and ensure file_hash column exists

- Compile src/db/migrate.ts to dist/migrate.js during build
- Copy dist/migrate.js to Stage 2 (runner) inside Dockerfile
- Run bun dist/migrate.js on db:migrate command
- Modify schema.sql to use CREATE TABLE IF NOT EXISTS and ALTER TABLE to add file_hash to existing database instances on VPS

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>

Dockerfile

@@ -22,6 +22,7 @@ WORKDIR /usr/src/app
 
 # Copy built files, schema, and package.json
 COPY --from=builder /usr/src/app/dist/index.js ./dist/index.js
+COPY --from=builder /usr/src/app/dist/migrate.js ./dist/migrate.js
 COPY schema.sql ./
 COPY package.json ./
 

package.json

@@ -5,9 +5,9 @@
   "type": "module",
   "scripts": {
     "dev": "bun --hot src/index.ts",
-    "build": "bun build src/index.ts --target=bun --outfile=dist/index.js",
+    "build": "bun build src/index.ts --target=bun --outfile=dist/index.js && bun build src/db/migrate.ts --target=bun --outfile=dist/migrate.js",
     "start": "NODE_ENV=production bun dist/index.js",
-    "db:migrate": "bun src/db/migrate.ts",
+    "db:migrate": "bun dist/migrate.js",
     "test": "bun test test/rateLimit.test.ts && bun test test/file.test.ts && bun test test/telegram.test.ts && bun test test/upload.test.ts && bun test test/files.test.ts && bun test test/health.test.ts && bun test test/bot.test.ts && bun test test/bootstrap.test.ts && bun test test/swagger.test.ts",
     "lint": "bunx biome check src test",
     "format": "bunx biome format --write src test"

schema.sql

@@ -1,4 +1,4 @@
-CREATE TABLE files (
+CREATE TABLE IF NOT EXISTS files (
   id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
   public_id VARCHAR(21) UNIQUE NOT NULL,
   telegram_file_id VARCHAR NOT NULL,
@@ -10,11 +10,14 @@ CREATE TABLE files (
   size_bytes BIGINT NOT NULL,
   file_type VARCHAR NOT NULL,
   uploader_id BIGINT NOT NULL,
+  file_hash VARCHAR,
   created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP,
   updated_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
 );
 
-CREATE INDEX idx_files_public_id ON files(public_id);
-CREATE INDEX idx_files_telegram_file_id ON files(telegram_file_id);
-CREATE INDEX idx_files_uploader_id ON files(uploader_id);
-CREATE INDEX idx_files_created_at ON files(created_at DESC);
+ALTER TABLE files ADD COLUMN IF NOT EXISTS file_hash VARCHAR;
+
+CREATE INDEX IF NOT EXISTS idx_files_public_id ON files(public_id);
+CREATE INDEX IF NOT EXISTS idx_files_telegram_file_id ON files(telegram_file_id);
+CREATE INDEX IF NOT EXISTS idx_files_uploader_id ON files(uploader_id);
+CREATE INDEX IF NOT EXISTS idx_files_created_at ON files(created_at DESC);