feat: implement TMDb enrichment for movie profiles

- Add SqliteMovieProfileRepository for managing movie profiles in SQLite.
- Create TmdbEnrichmentClient to fetch movie details from TMDb API.
- Implement enrichment event handling with EnrichmentHandler.
- Introduce periodic jobs for cleaning up expired import sessions and checking for stale movie profiles.
- Update application context to include movie profile repository.
- Add API endpoint to retrieve movie profiles.
- Extend domain models with new structures for movie enrichment (Genre, Keyword, CastMember, CrewMember, MovieProfile).
- Modify event system to include MovieEnrichmentRequested event.
- Enhance tests to cover new functionality and ensure stability.

crates/domain/src/models/mod.rs

@@ -1,4 +1,4 @@
-use chrono::{NaiveDateTime, Utc};
+use chrono::{DateTime, NaiveDateTime, Utc};
 
 use crate::{
     errors::DomainError,
@@ -490,3 +490,56 @@ mod tests {
         assert_eq!(user.avatar_path(), None);
     }
 }
+
+// ── Movie enrichment ───────────────────────────────────────────────────────────
+
+#[derive(Clone, Debug)]
+pub struct Genre {
+    pub tmdb_id: u32,
+    pub name: String,
+}
+
+#[derive(Clone, Debug)]
+pub struct Keyword {
+    pub tmdb_id: u32,
+    pub name: String,
+}
+
+#[derive(Clone, Debug)]
+pub struct CastMember {
+    pub tmdb_person_id: u64,
+    pub name: String,
+    pub character: String,
+    pub billing_order: u32,
+    pub profile_path: Option<String>,
+}
+
+#[derive(Clone, Debug)]
+pub struct CrewMember {
+    pub tmdb_person_id: u64,
+    pub name: String,
+    pub job: String,
+    pub department: String,
+    pub profile_path: Option<String>,
+}
+
+#[derive(Clone, Debug)]
+pub struct MovieProfile {
+    pub movie_id: MovieId,
+    pub tmdb_id: u64,
+    pub imdb_id: Option<String>,
+    pub overview: Option<String>,
+    pub tagline: Option<String>,
+    pub runtime_minutes: Option<u32>,
+    pub budget_usd: Option<i64>,
+    pub revenue_usd: Option<i64>,
+    pub vote_average: Option<f64>,
+    pub vote_count: Option<u32>,
+    pub original_language: Option<String>,
+    pub collection_name: Option<String>,
+    pub genres: Vec<Genre>,
+    pub keywords: Vec<Keyword>,
+    pub cast: Vec<CastMember>,
+    pub crew: Vec<CrewMember>,
+    pub enriched_at: DateTime<Utc>,
+}