fix(db): bump sqlx to 0.9, honour no-transaction

sqlx-sqlite 0.8 ignored Migration.no_tx and wrapped every
migration in a transaction, where PRAGMA foreign_keys = OFF
is a no-op — so any table rebuild cascade-deleted children.
0.9 honours `-- no-transaction`, so 0014 drops its
movie_releases_backup / episode_releases_backup workaround
and runs the plain rebuild recipe with foreign keys off.
A migration test rebuilds both parents from a pre-0014
database and asserts the child link rows survive.

Closes #155

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.sqlx/query-d58ad94e15e4b4db9dde68f418f586bfa8b6ac2eb2cdb556071f6382283d81ae.json

@@ -6,27 +6,57 @@
       {
         "name": "id!: i64",
         "ordinal": 0,
-        "type_info": "Integer"
+        "type_info": "Integer",
+        "origin": {
+          "Table": {
+            "table": "movies",
+            "name": "id"
+          }
+        }
       },
       {
         "name": "tmdb_id!: i64",
         "ordinal": 1,
-        "type_info": "Integer"
+        "type_info": "Integer",
+        "origin": {
+          "Table": {
+            "table": "movies",
+            "name": "tmdb_id"
+          }
+        }
       },
       {
         "name": "imdb_id: String",
         "ordinal": 2,
-        "type_info": "Text"
+        "type_info": "Text",
+        "origin": {
+          "Table": {
+            "table": "movies",
+            "name": "imdb_id"
+          }
+        }
       },
       {
         "name": "title!: String",
         "ordinal": 3,
-        "type_info": "Text"
+        "type_info": "Text",
+        "origin": {
+          "Table": {
+            "table": "movies",
+            "name": "title"
+          }
+        }
       },
       {
         "name": "year",
         "ordinal": 4,
-        "type_info": "Integer"
+        "type_info": "Integer",
+        "origin": {
+          "Table": {
+            "table": "movies",
+            "name": "year"
+          }
+        }
       }
     ],
     "parameters": {