Baseline: full tree snapshot after git repository loss

The previous .git directory was found gutted (only info/ remained), so
history is unrecoverable locally. This commit restores version control
with the tree exactly as it stands: the working app, the preview-tracks
launcher on the artist hero, the scrollable-track-previews design bundle
(docs + approved mockups), and the Phase 0 validation artifacts.

Cargo.toml

@@ -0,0 +1,33 @@
+[workspace]
+resolver = "2"
+members = [
+    "src-tauri",
+    "crates/soulseek-proto",
+    "crates/soulseek-client",
+    "crates/player",
+    "crates/tagger",
+    "crates/metadata",
+    "crates/library",
+]
+
+[workspace.package]
+version = "0.1.0"
+edition = "2021"
+rust-version = "1.77.2"
+authors = ["Trifecta Solutions"]
+
+[workspace.dependencies]
+tokio = { version = "1", features = ["rt-multi-thread", "net", "io-util", "sync", "time", "macros", "fs"] }
+bytes = "1"
+thiserror = "2"
+serde = { version = "1.0", features = ["derive"] }
+serde_json = "1.0"
+log = "0.4"
+image = { version = "0.25", default-features = false, features = ["jpeg", "png", "webp"] }
+
+[profile.dev]
+# Peer connections + audio decode are unusably slow at opt-level 0.
+opt-level = 1
+
+[profile.dev.package."*"]
+opt-level = 2