Add auto_merge_local option for local-only contractsmakima/auto-merge-local

When local_only=true on a contract, all completion actions are skipped.
This adds a new option auto_merge_local that, when enabled along with
local_only, will automatically merge completed task changes to the
master/main branch locally (without pushing or creating PRs).

Changes:
- Add auto_merge_local column to contracts table (migration)
- Add auto_merge_local field to Contract model and summary
- Update CreateContractRequest and UpdateContractRequest structs
- Update contract repository create/update functions
- Add auto_merge_local to WebSocket protocol StartTask command
- Pass auto_merge_local through spawn_task and run_task functions
- Modify task manager completion logic: if local_only=true AND
  auto_merge_local=true, execute 'merge' completion action locally
- Update all server handlers to retrieve and pass auto_merge_local
- Add TypeScript types to frontend components

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

1 files changed, 3 insertions, 0 deletions

diff --git a/makima/src/daemon/ws/protocol.rs b/makima/src/daemon/ws/protocol.rs
index c396961..bfe6326 100644
--- a/makima/src/daemon/ws/protocol.rs
+++ b/makima/src/daemon/ws/protocol.rs
@@ -494,6 +494,9 @@ pub enum DaemonCommand {
         /// Whether the contract is in local-only mode (skips automatic completion actions).
         #[serde(rename = "localOnly", default)]
         local_only: bool,
+        /// Whether to auto-merge to target branch locally when local_only mode is enabled.
+        #[serde(rename = "autoMergeLocal", default)]
+        auto_merge_local: bool,
         /// Task ID to share worktree with (supervisor's task ID). If Some, use that task's worktree instead of creating a new one.
         #[serde(rename = "supervisorWorktreeTaskId", default, skip_serializing_if = "Option::is_none")]
         supervisor_worktree_task_id: Option<Uuid>,