Clean contract lifecycle: Add supervisor complete command (#13)

* feat: Add contract lifecycle management commands (complete and resume-contract)

Add supervisor commands for properly managing contract lifecycle:
- `makima supervisor complete` - Mark a contract as complete and stop the supervisor
- `makima supervisor resume-contract` - Resume a completed contract (reactivate it)

Also adds `api_key` field to TaskConfig for authenticated API calls.

This consolidates the lifecycle management features from the contract-lifecycle-cleanup branch.

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

* Fix: prevent supervisor auto-start for completed contracts

When viewing a completed contract, the supervisor was auto-starting
on component mount. This would resurrect completed contracts and
cause them to continue running.

Changes:
- Add contract.status !== 'completed' check to the auto-start condition
- Add contract.status to the useEffect dependency array

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

* Task completion checkpoint

---------

Co-authored-by: Claude Opus 4.5 <noreply@anthropic.com>

2 files changed, 33 insertions, 0 deletions

diff --git a/makima/src/daemon/cli/mod.rs b/makima/src/daemon/cli/mod.rs
index ba71c28..3394b35 100644
--- a/makima/src/daemon/cli/mod.rs
+++ b/makima/src/daemon/cli/mod.rs
@@ -122,6 +122,12 @@ pub enum SupervisorCommand {
 
     /// Rewind supervisor conversation
     RewindConversation(supervisor::ConversationRewindArgs),
+
+    /// Mark the contract as complete and stop the supervisor
+    Complete(supervisor::CompleteArgs),
+
+    /// Resume a completed contract (reactivate it)
+    ResumeContract(supervisor::ResumeContractArgs),
 }
 
 /// Contract subcommands for task-contract interaction.
diff --git a/makima/src/daemon/cli/supervisor.rs b/makima/src/daemon/cli/supervisor.rs
index ae1a126..798a55f 100644
--- a/makima/src/daemon/cli/supervisor.rs
+++ b/makima/src/daemon/cli/supervisor.rs
@@ -390,3 +390,30 @@ pub struct ConversationRewindArgs {
     #[arg(long)]
     pub rewind_code: bool,
 }
+
+/// Arguments for complete command (mark contract as complete).
+#[derive(Args, Debug)]
+pub struct CompleteArgs {
+    #[command(flatten)]
+    pub common: SupervisorArgs,
+}
+
+// ============================================================================
+// Resume Contract Command Args
+// ============================================================================
+
+/// Arguments for resume-contract command (reactivate a completed contract).
+#[derive(Args, Debug)]
+pub struct ResumeContractArgs {
+    /// API URL
+    #[arg(long, env = "MAKIMA_API_URL", default_value = "https://api.makima.jp")]
+    pub api_url: String,
+
+    /// API key for authentication
+    #[arg(long, env = "MAKIMA_API_KEY")]
+    pub api_key: String,
+
+    /// Contract ID to resume
+    #[arg(index = 1)]
+    pub contract_id: Uuid,
+}