Mobile UI pass: responsive tables, deck-view drill-down, dialog fixes

- Library/Card Search/Deck tables stack into dense card-style rows below
  720px instead of scrolling horizontally (floated thumbnail, wrapping
  chips for MV/Owned/color pips).
- Deck view: fix desktop min-widths and a non-wrapping button row that
  forced horizontal scroll on phones; split the deck list and the
  deck-building pane into separate drill-down screens with a back button
  so a long deck list doesn't bury the builder.
- Suggested Cards modal: fix action buttons crushing the card name down to
  one word per line by giving them their own full-width row.
- Add a close (X) button to the shared dialog title bar — mobile has no
  Escape key and wide dialogs leave little backdrop to tap.
- Info tab, bottom-nav loading/safe-area fixes, and Gradle NDK_HOME
  inheritance fix carried over from the Android bring-up work.

src-tauri/src/state.rs

@@ -58,8 +58,20 @@ impl AppState {
             index: None,
             ingest_cancel: None,
         };
-        // Best-effort open; failures just leave the catalog unloaded.
-        let _ = s.reopen();
+        crate::mlog!(
+            "AppState::new: library={} reference={} (exists={})",
+            s.library_path.display(),
+            s.reference_path.display(),
+            s.reference_path.exists()
+        );
+        // Best-effort open; failures just leave the catalog unloaded (the UI
+        // falls back to "no card data yet" and offers Download/Import again).
+        // That fallback previously made a real open failure indistinguishable
+        // from a first run — log it so it shows up in `adb logcat -s
+        // RustStdoutStderr` instead of silently reappearing every launch.
+        if let Err(e) = s.reopen() {
+            crate::mlog!("AppState::new: reopen failed: {e}");
+        }
         s
     }