Initial workspace scaffold

Cargo workspace with 5 crates: buh-entity (pure data structs),
buh-data (Turso/libsql data access), buh-util (scraper, rules,
processor, sync modules), buh-cli (binary "buh" with client/daemon
subcommands), and buh-ws (axum WebSocket server).

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

daemon.toml

@@ -0,0 +1,38 @@
+[database]
+url = "libsql://your-db.turso.io"
+auth_token = "your-token"
+
+[[indexers]]
+name = "example-indexer"
+url = "https://example.com/api"
+media_types = ["show", "movie"]
+
+[[sync]]
+name = "jellyfin-shows"
+media_type = "show"
+path = "/mnt/media/shows"
+
+[[sync]]
+name = "jellyfin-movies"
+media_type = "movie"
+path = "/mnt/media/movies"
+
+[[sync]]
+name = "jellyfin-music"
+media_type = "music"
+path = "/mnt/media/music"
+
+[[sync]]
+name = "jellyfin-books"
+media_type = "book"
+path = "/mnt/media/books"
+
+[[sync]]
+name = "jellyfin-audiobooks"
+media_type = "audio-book"
+path = "/mnt/media/audiobooks"
+
+[routines]
+scrape = true
+process = true
+sync = true