Add multi-repository support for chains

Chains can now have multiple repositories attached, with one marked as
primary. Repositories are used by contracts created from chain definitions.

Backend changes:
- Add chain_repositories table migration
- Add ChainRepository model with CRUD operations
- Add API endpoints for listing, adding, deleting repositories
- Add endpoint to set a repository as primary
- Update Chain and ChainEditorData models to use repositories
- Update chain parser to support repositories in YAML format
- Remove deprecated repository_url/local_path from Chain

Frontend changes:
- Add ChainRepository interface and API functions
- Add repository section to ChainEditor showing attached repos
- Add modal for adding new repositories (remote or local)
- Support setting primary repository and removing repositories

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

1 files changed, 54 insertions, 10 deletions

diff --git a/makima/src/db/models.rs b/makima/src/db/models.rs
index 4e569ec..30e1603 100644
--- a/makima/src/db/models.rs
+++ b/makima/src/db/models.rs
@@ -2652,16 +2652,40 @@ pub struct Chain {
     pub loop_current_iteration: Option<i32>,
     /// Progress check prompt/criteria for evaluating loop completion
     pub loop_progress_check: Option<String>,
-    /// Repository URL for contracts in this chain (optional)
-    pub repository_url: Option<String>,
-    /// Local path for contracts in this chain (optional)
-    pub local_path: Option<String>,
     /// Version for optimistic locking
     pub version: i32,
     pub created_at: DateTime<Utc>,
     pub updated_at: DateTime<Utc>,
 }
 
+/// Chain repository record from the database
+#[derive(Debug, Clone, FromRow, Serialize, Deserialize, ToSchema)]
+#[serde(rename_all = "camelCase")]
+pub struct ChainRepository {
+    pub id: Uuid,
+    pub chain_id: Uuid,
+    pub name: String,
+    pub repository_url: Option<String>,
+    pub local_path: Option<String>,
+    pub source_type: String,
+    pub status: String,
+    pub is_primary: bool,
+    pub created_at: DateTime<Utc>,
+    pub updated_at: DateTime<Utc>,
+}
+
+impl ChainRepository {
+    /// Parse source_type string to RepositorySourceType enum
+    pub fn source_type_enum(&self) -> Result<RepositorySourceType, String> {
+        self.source_type.parse()
+    }
+
+    /// Parse status string to RepositoryStatus enum
+    pub fn status_enum(&self) -> Result<RepositoryStatus, String> {
+        self.status.parse()
+    }
+}
+
 impl Chain {
     /// Parse status string to ChainStatus enum
     pub fn status_enum(&self) -> Result<ChainStatus, String> {
@@ -2724,6 +2748,7 @@ pub struct ChainWithContracts {
     #[serde(flatten)]
     pub chain: Chain,
     pub contracts: Vec<ChainContractDetail>,
+    pub repositories: Vec<ChainRepository>,
 }
 
 /// Contract detail within a chain (includes contract info + chain link info)
@@ -2790,10 +2815,8 @@ pub struct CreateChainRequest {
     pub name: String,
     /// Optional description
     pub description: Option<String>,
-    /// Repository URL for contracts in this chain
-    pub repository_url: Option<String>,
-    /// Local path for contracts in this chain
-    pub local_path: Option<String>,
+    /// Repositories for this chain
+    pub repositories: Option<Vec<AddChainRepositoryRequest>>,
     /// Enable loop mode for iterative execution
     #[serde(default)]
     pub loop_enabled: Option<bool>,
@@ -2805,6 +2828,28 @@ pub struct CreateChainRequest {
     pub contracts: Option<Vec<CreateChainContractRequest>>,
 }
 
+/// Request to add a repository to a chain
+#[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
+#[serde(rename_all = "camelCase")]
+pub struct AddChainRepositoryRequest {
+    /// Display name for the repository
+    pub name: String,
+    /// Remote repository URL (for remote repos)
+    pub repository_url: Option<String>,
+    /// Local filesystem path (for local repos)
+    pub local_path: Option<String>,
+    /// Source type: remote, local, or managed
+    #[serde(default = "default_source_type")]
+    pub source_type: String,
+    /// Whether this is the primary repository
+    #[serde(default)]
+    pub is_primary: bool,
+}
+
+fn default_source_type() -> String {
+    "remote".to_string()
+}
+
 /// Request to create a contract within a chain
 #[derive(Debug, Clone, Serialize, Deserialize, ToSchema)]
 #[serde(rename_all = "camelCase")]
@@ -2934,8 +2979,7 @@ pub struct ChainEditorData {
     pub id: Option<Uuid>,
     pub name: String,
     pub description: Option<String>,
-    pub repository_url: Option<String>,
-    pub local_path: Option<String>,
+    pub repositories: Vec<ChainRepository>,
     pub loop_enabled: bool,
     pub loop_max_iterations: Option<i32>,
     pub loop_progress_check: Option<String>,