feat(pmoradiofrance): implémentation complète du client Radio France

Cette mise à jour implémente complètement le client Radio France avec :

- Découverte dynamique des stations (principales, webradios et locales)
- Accès aux métadonnées live via l'API publique
- Gestion des flux audio HiFi (AAC 192 kbps, HLS)
- Support du cache des stations avec TTL configurable
- Extension de configuration pour pmoconfig
- Exemples d'utilisation et tests d'intégration

Les stations découvertes incluent : France Inter, France Info, France Culture, France Musique, FIP, Mouv', France Bleu (locales), et leurs variantes webradios respectives.

Les fonctionnalités incluent :
- Récupération des métadonnées live (émission en cours, producteur, visuels)
- Accès aux flux audio HiFi
- Gestion intelligente des rafraîchissements via delayToRefresh
- Cache des listes de stations avec TTL configurable (7 jours par défaut)

Les tests d'intégration couvrent : découverte des stations, métadonnées live, flux audio, cache, et gestion des erreurs.

pmoradiofrance/Cargo.toml

@@ -0,0 +1,80 @@
+[package]
+name = "pmoradiofrance"
+version = "0.1.0"
+edition = "2021"
+authors = ["PMOMusic Contributors"]
+description = "Rust client for Radio France streaming services"
+license = "MIT OR Apache-2.0"
+repository = "https://github.com/yourusername/pmomusic"
+keywords = ["radio", "france", "streaming", "music", "aac"]
+categories = ["multimedia", "api-bindings"]
+
+[dependencies]
+# HTTP client for Radio France API requests
+reqwest = { version = "0.12", features = ["json"] }
+
+# Async runtime
+tokio = { workspace = true }
+
+# Serialization/Deserialization
+serde = { workspace = true }
+serde_json = { workspace = true }
+serde_yaml = { workspace = true }
+
+# Helpers
+chrono = { workspace = true }
+async-trait = { workspace = true }
+
+# Error handling
+thiserror = { workspace = true }
+anyhow = { workspace = true }
+
+# Logging
+tracing = { workspace = true }
+
+# URL manipulation
+url = "2.5"
+
+# HTML scraping for station discovery
+scraper = "0.22"
+regex = "1.11"
+
+# Common music source traits
+pmosource = { path = "../pmosource" }
+
+# Configuration support
+pmoconfig = { path = "../pmoconfig", optional = true }
+
+# Cache support
+pmocovers = { path = "../pmocovers", optional = true }
+pmoaudiocache = { path = "../pmoaudiocache", optional = true }
+
+# Playlist management for FIFO support
+pmoplaylist = { path = "../pmoplaylist", optional = true }
+
+[features]
+default = ["pmoconfig"]
+# Feature for pmoconfig support
+pmoconfig = ["dep:pmoconfig"]
+# Feature for cache support
+cache = ["dep:pmocovers", "dep:pmoaudiocache"]
+# Feature for playlist/FIFO support
+playlist = ["dep:pmoplaylist"]
+# Feature for logging (tracing)
+logging = []
+# Feature for server support (cache registry)
+server = ["pmosource/server", "pmoconfig", "cache", "playlist"]
+# Full feature set
+full = ["server", "logging"]
+
+[dev-dependencies]
+tokio-test = { workspace = true }
+tracing-subscriber = { workspace = true }
+
+[[example]]
+name = "discover_stations"
+path = "examples/discover_stations.rs"
+
+[[example]]
+name = "live_metadata"
+path = "examples/live_metadata.rs"