feat: Add thumbnail generation feature and update media model

- Updated workspace members to include `libertas_importer`.
- Added a new migration to add `thumbnail_path` column to `media` table.
- Enhanced configuration structures to include `thumbnail_config`.
- Modified `Media` model to include `thumbnail_path`.
- Updated `MediaRepository` trait and its implementation to handle thumbnail path updates.
- Created `ThumbnailPlugin` for generating thumbnails based on media configurations.
- Integrated thumbnail generation into the media processing workflow.
- Updated dependencies in `libertas_worker` and `libertas_importer` for image processing.

libertas_importer/Cargo.toml

@@ -0,0 +1,23 @@
+[package]
+name = "libertas_importer"
+version = "0.1.0"
+edition = "2024"
+
+[dependencies]
+anyhow = "1.0.100"
+async-nats = "0.45.0"
+bytes = "1.10.1"
+chrono = "0.4.42"
+clap = { version = "4.5.51", features = ["derive"] }
+futures = "0.3.31"
+libertas_core = { path = "../libertas_core" }
+libertas_infra = { path = "../libertas_infra" }
+mime_guess = "2.0.5"
+nom-exif = { version = "2.5.4", features = ["serde", "tokio", "async"] }
+serde = { version = "1.0.228", features = ["derive"] }
+serde_json = "1.0.145"
+sha2 = "0.10.9"
+sqlx = { version = "0.8.6", features = ["runtime-tokio", "postgres", "uuid", "chrono"] }
+tokio = { version = "1.48.0", features = ["full"] }
+uuid = { version = "1.18.1", features = ["v4", "serde"] }
+walkdir = "2.5.0"