presentation: HTTP server crate w/ handlers, routes, background tasks

Axum binary that wires all clean-arch crates together:
- AppState holds pre-built Deps structs (auth, channels, schedule, library, etc.)
- JWT extractors (CurrentUser, AdminUser, OptionalCurrentUser)
- Handlers delegate to application use cases, map to api-types DTOs
- Routes: auth, channels, schedule, library, admin, providers, config, iptv
- Background: auto-scheduler, broadcast poller, webhook consumer, library sync
- Factory builds everything from Config + DbPool
- SimpleProviderRegistry impl of IProviderRegistry trait
- NoopMediaProvider fallback

crates/presentation/Cargo.toml

@@ -0,0 +1,55 @@
+[package]
+name = "presentation"
+version = "0.1.0"
+edition = "2024"
+
+[[bin]]
+name = "k-tv"
+path = "src/main.rs"
+
+[features]
+default = ["sqlite", "auth-jwt", "jellyfin"]
+sqlite = ["dep:adapter-sqlite", "infra-wiring/sqlite"]
+postgres = ["dep:adapter-postgres", "infra-wiring/postgres"]
+auth-jwt = ["adapter-auth/jwt"]
+auth-oidc = ["adapter-auth/oidc"]
+jellyfin = ["dep:adapter-jellyfin"]
+local-files = ["dep:adapter-local-files", "dep:tokio-util"]
+
+[dependencies]
+domain = { workspace = true }
+application = { workspace = true }
+api-types = { workspace = true }
+infra-wiring = { workspace = true }
+adapter-auth = { workspace = true }
+adapter-event-publisher = { workspace = true }
+
+# Feature-gated adapters
+adapter-sqlite = { workspace = true, optional = true }
+adapter-postgres = { workspace = true, optional = true }
+adapter-jellyfin = { workspace = true, optional = true }
+adapter-local-files = { workspace = true, optional = true }
+
+# Framework
+axum = { workspace = true }
+axum-extra = { workspace = true, features = ["typed-header"] }
+tower = { workspace = true }
+tower-http = { workspace = true }
+tokio = { workspace = true }
+tracing = { workspace = true }
+tracing-subscriber = { workspace = true }
+
+# Utils
+serde = { workspace = true }
+serde_json = { workspace = true }
+uuid = { workspace = true }
+chrono = { workspace = true }
+thiserror = { workspace = true }
+async-trait = { workspace = true }
+anyhow = "1"
+dotenvy = "0.15"
+reqwest = { workspace = true }
+handlebars = "6"
+
+# Local-files streaming
+tokio-util = { version = "0.7", features = ["io"], optional = true }