parking: parked calls live, on the dashboard and Home, pick up from Home

res_parking was configured in M0 (700, slots 701-720, slot hints); this
makes parked calls visible. ParkingTracker loads ParkedCalls and follows
ParkedCall/UnParkedCall/ParkedCallTimeOut/ParkedCallGiveUp; everyone
gets parked.updated/parked.removed. Who parked comes from
ParkerDialString.

A blind transfer to 700 parks without running Park() in the dialplan,
so the live call's "parked" state now comes from those events by
ParkeeLinkedid; the picking-up phone runs ParkedCall() while talking,
which no longer counts as parked.

Web: "Parked calls" on the Dashboard and on Home, where "Pick up 701"
calls the slot like Call back (softphone, or the desk phone first).

CDR fixture park-pickup (recorded: 101 parks an inbound call, 103 picks
it up); the call counts as answered by 101 with 103 in rang. e2e m8-t2
with real phones: park by blind transfer, hint InUse, both lists, pick
up from Home, a second park on 702 (findslot = next) picked up by
dialing it from another phone. Specs 01/04/05 note what was verified.

Task: M8-T2

apps/api/test/asterisk/cdr-record.ts

@@ -5,7 +5,7 @@
 //   103 Carol  auto-answer          104 Dave  no phone, no voicemail
 // Each scenario's Cdr events go to apps/api/test/fixtures/cdr/<name>.json.
 // Queue 550 has Alice (answers); queue 551 has Bob (never answers) and sends callers who wait
-// 8 s to his voicemail. Parking arrives with M8-T2.
+// 8 s to his voicemail. Park: Alice parks a caller on 700 (→ 701), Carol picks it up.
 // Usage: node --conditions=source apps/api/test/asterisk/cdr-record.ts
 import { spawnSync } from 'node:child_process';
 import { mkdirSync, mkdtempSync, rmSync, writeFileSync } from 'node:fs';
@@ -444,6 +444,23 @@ async function main() {
       await sleep(6000);
     });
 
+    await scenario('park-pickup', async () => {
+      fromMobile('3125551234');
+      await waitFor('101 answers', () => !!pbxChannel('PJSIP/101-'));
+      await sleep(2000);
+      await ami.action({
+        Action: 'BlindTransfer',
+        Channel: pbxChannel('PJSIP/101-')!,
+        Context: 'sp-from-ext',
+        Exten: '700',
+      });
+      await waitFor('parked on 701', () => /701/.test(cli(PBX, 'parking show default')), 20);
+      await sleep(2000);
+      await fromPhone('103', '701', 'Carol');
+      await waitFor('103 picks up', () => !!pbxChannel('PJSIP/103-'), 20);
+      await sleep(4000);
+    });
+
     mkdirSync(OUT, { recursive: true });
     for (const [name, evs] of Object.entries(recorded)) {
       if (!evs.length) throw new Error(`${name}: no Cdr events`);