fixup! refactor(indexeddb): add migrations and types for media retention metadata index

Signed-off-by: Michael Goldenberg <[email protected]>

Author: mgoldenberg

crates/matrix-sdk-indexeddb/src/event_cache_store/serializer/types.rs

@@ -956,6 +956,9 @@ pub struct IndexedMedia {
     /// The last time the media was accessed and whether to ignore the
     /// [`MediaRetentionPolicy`]
     pub last_access: IndexedMediaLastAccessKey,
+    /// The last the media was accessed, the size (in bytes) of the media
+    /// content, and whether to ignore the [`MediaRetentionPolicy`]
+    pub retention_metadata: IndexedMediaRetentionMetadataKey,
     /// The (possibly) encrypted metadata - i.e., [`MediaMetadata`][1]
     ///
     /// [1]: crate::event_cache_store::types::MediaMetadata
@@ -1002,6 +1005,10 @@ impl Indexed for Media {
                 (self.metadata.ignore_policy, self.metadata.last_access),
                 serializer,
             ),
+            retention_metadata: IndexedMediaRetentionMetadataKey::encode(
+                (self.metadata.ignore_policy, self.metadata.last_access, content.len()),
+                serializer,
+            ),
             metadata: serializer.maybe_encrypt_value(&self.metadata)?,
             content,
         })