refactor(sync): collapse 11 sync args into forwarded token array

- Replace syncHost/syncSnapshotPath/… with syncCliTokens: string[] passed verbatim to --sync-cli sync
- Move sync CLI validation from launcher to parseSyncCliTokens (app-side single owner)
- Extract resolveImmersionDbPath to shared db-path.ts importable by both launcher and app
- Delete driver.ts; inline types into libsql-driver.ts and hard-wire openLibsqlSyncDb
- Drop OpenSyncDb injection from mergeSnapshotIntoDb and createDbSnapshot

launcher/commands/sync-command.test.ts

@@ -2,7 +2,7 @@ import test from 'node:test';
 import assert from 'node:assert/strict';
 import type { Args } from '../types.js';
 import type { LauncherCommandContext } from './context.js';
-import { buildSyncCliArgv, runSyncCommand, type SyncCommandDeps } from './sync-command.js';
+import { runSyncCommand, type SyncCommandDeps } from './sync-command.js';
 
 function makeContext(
   overrides: Partial<Args>,
@@ -11,17 +11,7 @@ function makeContext(
   return {
     args: {
       sync: true,
-      syncHost: '',
-      syncSnapshotPath: '',
-      syncMergePath: '',
-      syncDirection: 'both',
-      syncRemoteCmd: '',
-      syncDbPath: '',
-      syncForce: false,
-      syncJson: false,
-      syncCheck: false,
-      syncMakeTemp: false,
-      syncRemoveTempPath: '',
+      syncCliTokens: [],
       logLevel: 'warn',
       ...overrides,
     } as Args,
@@ -35,24 +25,6 @@ function makeContext(
   } as unknown as LauncherCommandContext;
 }
 
-function makeArgs(overrides: Partial<Parameters<typeof buildSyncCliArgv>[0]>) {
-  return {
-    syncHost: '',
-    syncSnapshotPath: '',
-    syncMergePath: '',
-    syncDirection: 'both' as const,
-    syncRemoteCmd: '',
-    syncDbPath: '',
-    syncForce: false,
-    syncJson: false,
-    syncCheck: false,
-    syncMakeTemp: false,
-    syncRemoveTempPath: '',
-    logLevel: 'warn' as const,
-    ...overrides,
-  };
-}
-
 test('runSyncCommand proxies sync argv to the app in --sync-cli mode', async () => {
   const spawned: Array<{ appPath: string; appArgs: string[] }> = [];
   const deps: Partial<SyncCommandDeps> = {
@@ -62,7 +34,7 @@ test('runSyncCommand proxies sync argv to the app in --sync-cli mode', async ()
   };
 
   assert.equal(
-    await runSyncCommand(makeContext({ syncHost: 'media-box', syncJson: true }), deps),
+    await runSyncCommand(makeContext({ syncCliTokens: ['media-box', '--json'] }), deps),
     true,
   );
   assert.deepEqual(spawned, [
@@ -76,19 +48,32 @@ test('runSyncCommand proxies sync argv to the app in --sync-cli mode', async ()
   assert.equal(spawned.length, 1);
 });
 
-test('buildSyncCliArgv forwards every sync option', () => {
-  assert.deepEqual(
-    buildSyncCliArgv(
-      makeArgs({
-        syncHost: 'media-box',
-        syncDirection: 'pull',
-        syncRemoteCmd: '/opt/SubMiner.AppImage',
-        syncDbPath: '/tmp/db.sqlite',
-        syncForce: true,
-        syncJson: true,
-        logLevel: 'debug',
-      }),
-    ),
+test('runSyncCommand forwards tokens verbatim and appends the effective log level', async () => {
+  const spawned: string[][] = [];
+  const deps: Partial<SyncCommandDeps> = {
+    runAppCommand: (_appPath, appArgs) => {
+      spawned.push(appArgs);
+    },
+  };
+
+  await runSyncCommand(
+    makeContext({
+      syncCliTokens: [
+        'media-box',
+        '--pull',
+        '--remote-cmd',
+        '/opt/SubMiner.AppImage',
+        '--db',
+        '/tmp/db.sqlite',
+        '--force',
+        '--json',
+      ],
+      logLevel: 'debug',
+    }),
+    deps,
+  );
+
+  assert.deepEqual(spawned, [
     [
       '--sync-cli',
       'sync',
@@ -103,32 +88,7 @@ test('buildSyncCliArgv forwards every sync option', () => {
       '--log-level',
       'debug',
     ],
-  );
-
-  assert.deepEqual(
-    buildSyncCliArgv(makeArgs({ syncSnapshotPath: '/tmp/out.sqlite' })),
-    ['--sync-cli', 'sync', '--snapshot', '/tmp/out.sqlite', '--log-level', 'warn'],
-  );
-
-  assert.deepEqual(
-    buildSyncCliArgv(makeArgs({ syncHost: 'media-box', syncCheck: true })),
-    ['--sync-cli', 'sync', 'media-box', '--check', '--log-level', 'warn'],
-  );
-
-  assert.deepEqual(
-    buildSyncCliArgv(makeArgs({ syncMakeTemp: true })),
-    ['--sync-cli', 'sync', '--make-temp', '--log-level', 'warn'],
-  );
-
-  assert.deepEqual(
-    buildSyncCliArgv(makeArgs({ syncRemoveTempPath: '/tmp/subminer-sync-x' })),
-    ['--sync-cli', 'sync', '--remove-temp', '/tmp/subminer-sync-x', '--log-level', 'warn'],
-  );
-
-  assert.deepEqual(
-    buildSyncCliArgv(makeArgs({ syncMergePath: '/tmp/in.sqlite', syncForce: true })),
-    ['--sync-cli', 'sync', '--merge', '/tmp/in.sqlite', '--force', '--log-level', 'warn'],
-  );
+  ]);
 });
 
 test('runSyncCommand fails with a clear message when the app binary is missing', async () => {
@@ -142,7 +102,7 @@ test('runSyncCommand fails with a clear message when the app binary is missing',
   };
 
   await assert.rejects(
-    () => runSyncCommand(makeContext({ syncHost: 'media-box' }, null), deps),
+    () => runSyncCommand(makeContext({ syncCliTokens: ['media-box'] }, null), deps),
     /SubMiner app binary not found \(sync runs inside the app\)/,
   );
 });