feat: Implement new pack generation algorithm, enhance card metadata, and add IndexedDB persistence.

docs/development/devlog/2025-12-16-224500_card_metadata_enhancement.md

@@ -0,0 +1,26 @@
+# Card Metadata Enhancement
+
+## Objective
+Enhance the Scryfall data fetching and internal card representation to include full metadata (CMC, Oracle Text, Power/Toughness, Collector Number, etc.). This allows strictly precise pack generation and potential future features like mana curve analysis or specific slot targeting.
+
+## Changes
+1.  **Updated `ScryfallService.ts`**:
+    -   Extended `ScryfallCard` interface to include:
+        -   `cmc` (number)
+        -   `mana_cost` (string)
+        -   `oracle_text` (string)
+        -   `power`, `toughness` (strings)
+        -   `collector_number` (string)
+        -   `color_identity` (string[])
+        -   `keywords` (string[])
+        -   `booster` (boolean)
+        -   `promo`, `reprint` (booleans)
+    -   Verified that `fetch` calls already return this data; TS interface update exposes it.
+
+2.  **Updated `PackGeneratorService.ts`**:
+    -   Extended `DraftCard` internal interface to include the same metadata fields (normalized names like `manaCost`, `oracleText`).
+    -   Updated `processCards` function to map these fields from the Scryfall response to the `DraftCard` object.
+
+## Impact
+-   Pack generation now has access to rich metadata.
+-   Future-proofs the system for "The List" exact matching (via collector number or promo types) and game logic (CMC sorting).