fix(daemon): park vanished grabs instead of re-grabbing

Overrides #86: removing a torrent by hand in Transmission is human
intent, not a gap to refill. Clear `wanted` and mark the target
`parked` (a new movies/episodes state) rather than reopening it as
`missing`, so neither targeted search nor RSS matching pick it back
up. Blacklist stays untouched, since the release never failed policy.

Closes #108

.sqlx/query-3f945137b92734bd4963ff2de58fc6d1381a46d3cfadc13f6bd223cf913b0e05.json

@@ -0,0 +1,12 @@
+{
+  "db_name": "SQLite",
+  "query": "UPDATE episodes SET wanted = 0, state = 'parked',\n                        updated_at = strftime('%Y-%m-%dT%H:%M:%fZ', 'now')\n                 WHERE id = ?",
+  "describe": {
+    "columns": [],
+    "parameters": {
+      "Right": 1
+    },
+    "nullable": []
+  },
+  "hash": "3f945137b92734bd4963ff2de58fc6d1381a46d3cfadc13f6bd223cf913b0e05"
+}