Deck status (Idea/Building/Built/Retired) and pulled-card tracking

Only building and built decks now claim owned copies, so several idea
decks can share one copy without an over-assignment warning. Deck cards
track how many copies are physically pulled: physical decks list cards
to pull with their source (a storage box, or another deck to take a copy
from), and idea decks split cards into available / in other decks / not
owned. The deck list shows status chips with to-pull counts, filters by
status, and collapses retired decks. Status and pulled counts sync,
which bumps the library document to version 4.

Existing decks migrate as ideas.

Closes #25

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src-tauri/src/commands.rs

@@ -7,7 +7,7 @@ use std::path::PathBuf;
 use std::sync::Mutex;
 
 use mtgc_core::{
-    CardRef, CardSuggestion, Deck, DeckEntry, LibraryCard, LibraryCopy, LibraryFacets,
+    CardRef, CardSuggestion, Deck, DeckEntry, DeckStatus, LibraryCard, LibraryCopy, LibraryFacets,
     LibraryFilter, LibraryStats, PrintingRef, SuggestOptions,
 };
 use serde::Serialize;
@@ -329,6 +329,30 @@ pub fn set_deck_format(db: Db, deck_id: i64, format: String) -> Res<()> {
         .map_err(|e| e.to_string())
 }
 
+#[tauri::command]
+pub fn set_deck_status(db: Db, deck_id: i64, status: DeckStatus, assembled: bool) -> Res<()> {
+    let s = db.lock().unwrap();
+    s.catalog()?
+        .set_deck_status(deck_id, status, assembled)
+        .map_err(|e| e.to_string())
+}
+
+#[tauri::command]
+pub fn set_deck_card_pulled(db: Db, deck_id: i64, oracle_id: String, pulled: i64) -> Res<i64> {
+    let s = db.lock().unwrap();
+    s.catalog()?
+        .set_deck_card_pulled(deck_id, &oracle_id, pulled)
+        .map_err(|e| e.to_string())
+}
+
+#[tauri::command]
+pub fn take_deck_card_copy(db: Db, from_deck_id: i64, to_deck_id: i64, oracle_id: String) -> Res<bool> {
+    let s = db.lock().unwrap();
+    s.catalog()?
+        .take_deck_card_copy(from_deck_id, to_deck_id, &oracle_id)
+        .map_err(|e| e.to_string())
+}
+
 #[tauri::command]
 pub fn set_deck_cover(db: Db, deck_id: i64, oracle_id: Option<String>) -> Res<()> {
     let s = db.lock().unwrap();

src-tauri/src/lib.rs

@@ -108,6 +108,9 @@ pub fn run() {
             commands::duplicate_deck,
             commands::set_deck_format,
             commands::set_deck_cover,
+            commands::set_deck_status,
+            commands::set_deck_card_pulled,
+            commands::take_deck_card_copy,
             commands::set_deck_commander,
             commands::set_deck_commanders,
             commands::search_partners,