feat(plugins): add Anki card-mined event, AnkiConnect invoke, anki-sync

- Add ctx.anki.on('card-mined') fed by polling, proxy, and card creation once enrichment finishes
- Add ctx.anki.invoke to send one AnkiConnect action to the effective url with no retries
- Ship example anki-sync plugin that syncs to AnkiWeb after mining goes quiet or playback ends
- Unload plugins that finish activating after unloadAll gave up on them
- Document the Anki API and anki-sync plugin in docs-site and architecture docs

src/anki-integration/polling.test.ts

@@ -3,9 +3,10 @@ import test from 'node:test';
 
 import { PollingRunner } from './polling';
 
-test('polling runner records newly added cards after initialization', async () => {
+test('polling runner records new cards and reports each ready after enrichment', async () => {
   const originalDateNow = Date.now;
   const recordedCards: number[] = [];
+  const events: string[] = [];
   let tracked = new Set<number>();
   const responses = [
     [10, 11],
@@ -18,10 +19,15 @@ test('polling runner records newly added cards after initialization', async () =
       getPollingRate: () => 250,
       findNotes: async () => responses.shift() ?? [],
       shouldAutoUpdateNewCards: () => true,
-      processNewCard: async () => undefined,
+      processNewCard: async (noteId) => {
+        events.push(`process ${noteId}`);
+      },
       recordCardsAdded: (count) => {
         recordedCards.push(count);
       },
+      onCardsReady: (noteIds) => {
+        events.push(`ready ${noteIds.join(',')}`);
+      },
       isUpdateInProgress: () => false,
       setUpdateInProgress: () => undefined,
       getTrackedNoteIds: () => tracked,
@@ -38,6 +44,7 @@ test('polling runner records newly added cards after initialization', async () =
     await runner.pollOnce();
 
     assert.deepEqual(recordedCards, [2]);
+    assert.deepEqual(events, ['process 12', 'ready 12', 'process 13', 'ready 13']);
   } finally {
     Date.now = originalDateNow;
   }