Initial commit: MTG personal library catalog (Tauri v2 + React/TS)

Full working app with:
- Rust core (mtgc-core): Scryfall ingester, nucleo fuzzy search, SQLite two-DB
  architecture (reference.db + library.db via ATTACH), criteria filters, deck ops
- Tauri v2 shell exposing the core as typed IPC commands
- React/TS frontend: card entry, library browser, deck editor
- Features: fuzzy card search, color/CMC/type/commander-identity filters,
  tile/list view toggle, hover card previews, deck format + commander support,
  per-card location field, grouping by type/subtype/CMC/color, localStorage
  persistence for active tab/deck/grouping, Discord-inspired dark UI (#C8553D accent)

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

Cargo.toml

@@ -0,0 +1,25 @@
+[workspace]
+resolver = "2"
+members = ["crates/mtgc-core", "src-tauri"]
+
+[workspace.package]
+version = "0.1.0"
+edition = "2021"
+license = "MIT"
+
+[workspace.dependencies]
+rusqlite = { version = "0.31", features = ["bundled"] }
+serde = { version = "1", features = ["derive"] }
+serde_json = "1"
+nucleo = "0.5"
+ureq = { version = "2", features = ["json"] }
+anyhow = "1"
+thiserror = "1"
+
+# Lean, self-contained release binary (used by `cargo tauri build`).
+# Trades a few minutes of extra build time for a smaller executable.
+[profile.release]
+strip = true      # drop debug symbols
+lto = true        # link-time optimization
+codegen-units = 1 # better optimization at the cost of parallelism
+panic = "abort"   # no unwinding machinery