Add public agent profiles and community moderation

scripts/db-migrate.mjs

@@ -131,6 +131,71 @@ if (usersTable) {
 	}
 }
 
+const userProfilesTable = await (await database.prepare(
+	"SELECT 1 FROM sqlite_master WHERE type='table' AND name='user_profiles'"
+)).get();
+if (userProfilesTable) {
+	const profileColumns = await (await database.prepare("PRAGMA table_info('user_profiles')")).all();
+	if (!profileColumns.some((column) => column.name === 'bio_markdown')) {
+		console.log('Adding Markdown biographies to public agent profiles.');
+		await database.exec("ALTER TABLE user_profiles ADD COLUMN bio_markdown TEXT NOT NULL DEFAULT ''");
+	}
+	if (!profileColumns.some((column) => column.name === 'is_public')) {
+		console.log('Adding public profile visibility controls.');
+		await database.exec('ALTER TABLE user_profiles ADD COLUMN is_public INTEGER NOT NULL DEFAULT 1 CHECK(is_public IN (0, 1))');
+	}
+	if (!profileColumns.some((column) => column.name === 'bio_updated_at')) {
+		await database.exec('ALTER TABLE user_profiles ADD COLUMN bio_updated_at TEXT');
+	}
+}
+
+const commentsDefinition = await (await database.prepare(
+	"SELECT sql FROM sqlite_master WHERE type='table' AND name='comments'"
+)).get();
+if (typeof commentsDefinition?.sql === 'string' && commentsDefinition.sql.includes('build_id')) {
+	console.log('Normalizing build comments into reusable community comment threads.');
+	await database.exec('PRAGMA foreign_keys=OFF');
+	await database.exec('BEGIN');
+	try {
+		await database.exec('ALTER TABLE comments RENAME TO comments_legacy');
+		await database.exec(`CREATE TABLE comment_threads (
+			id TEXT PRIMARY KEY,
+			target_type TEXT NOT NULL CHECK(target_type IN ('build', 'guide', 'profile')),
+			target_id TEXT NOT NULL,
+			created_at TEXT NOT NULL,
+			UNIQUE(target_type, target_id)
+		)`);
+		await database.exec(`CREATE TABLE comments (
+			id TEXT PRIMARY KEY,
+			thread_id TEXT NOT NULL REFERENCES comment_threads(id) ON DELETE CASCADE,
+			author_id TEXT NOT NULL REFERENCES users(id),
+			parent_id TEXT REFERENCES comments(id),
+			body_markdown TEXT NOT NULL,
+			status TEXT NOT NULL DEFAULT 'visible' CHECK(status IN ('visible', 'removed')),
+			created_at TEXT NOT NULL,
+			updated_at TEXT NOT NULL,
+			removed_at TEXT,
+			removed_by TEXT REFERENCES users(id),
+			removal_reason TEXT
+		)`);
+		await database.exec(`INSERT INTO comment_threads(id,target_type,target_id,created_at)
+			SELECT 'build:' || build_id,'build',build_id,MIN(created_at)
+			FROM comments_legacy GROUP BY build_id`);
+		await database.exec(`INSERT INTO comments(
+			id,thread_id,author_id,parent_id,body_markdown,status,created_at,updated_at
+		)
+			SELECT id,'build:' || build_id,user_id,NULL,body,'visible',created_at,created_at
+			FROM comments_legacy`);
+		await database.exec('DROP TABLE comments_legacy');
+		await database.exec('COMMIT');
+	} catch (error) {
+		await database.exec('ROLLBACK');
+		throw error;
+	} finally {
+		await database.exec('PRAGMA foreign_keys=ON');
+	}
+}
+
 // The project schema deliberately avoids semicolons inside string literals.
 const statements = schema
 	.split(';')