feat: add main features

Agents for developpement added + frontend add + backend added. Git viewer created + agent and template creator + layout and project creator

crates/application/Cargo.toml

@@ -0,0 +1,19 @@
+[package]
+name = "application"
+version = "0.1.0"
+edition.workspace = true
+license.workspace = true
+rust-version.workspace = true
+description = "IdeA — application layer: use cases, DTOs, AppError. Depends only on domain ports."
+
+[dependencies]
+domain = { workspace = true }
+thiserror = { workspace = true }
+async-trait = { workspace = true }
+serde = { workspace = true }
+serde_json = { workspace = true }
+# `v5` derives stable reference-profile ids from a fixed namespace (catalogue).
+uuid = { workspace = true }
+
+[dev-dependencies]
+tokio = { workspace = true }