gmail sync: locale-agnostic folder mapping and import all mail

[Google Mail] locale variant was not matched by hardcoded [Gmail] paths,
so Sent/Starred/Important/Drafts were never labeled. All Mail was skipped
entirely, losing ~9k archived emails. Now normalizes the prefix, imports
everything with proper labels, and processes All Mail last so specific
folder labels take priority.

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

scripts/reimport-gmail.ts

@@ -0,0 +1,33 @@
+import { join } from 'node:path';
+import { unlinkSync } from 'node:fs';
+import { openEmailDb } from '../src/servers/api/email/email-db';
+import { importMaildir } from '../src/servers/queue/handlers/gmail-sync';
+
+const DATA_PATH = process.env.DATA_PATH ?? join(process.cwd(), 'data');
+const email = process.argv[2];
+
+if (!email) {
+  console.error('Usage: bun scripts/reimport-gmail.ts <email>');
+  process.exit(1);
+}
+
+const maildirPath = join(DATA_PATH, email, 'Gmail', 'Maildir');
+const dbPath = join(DATA_PATH, email, 'emails.db');
+
+// Delete existing DB for a fresh import
+try {
+  unlinkSync(dbPath);
+  console.log(`Deleted ${dbPath}`);
+} catch {
+  console.log('No existing DB to delete');
+}
+
+const db = openEmailDb(email);
+
+console.log(`Importing from ${maildirPath}...`);
+const result = await importMaildir(maildirPath, email, db, (saved, skipped) => {
+  process.stdout.write(`\r  saved ${saved}, skipped ${skipped}`);
+});
+
+console.log(`\nDone: saved ${result.saved}, skipped ${result.skipped}, errors ${result.errors}`);
+db.close();