feat: add deployment status endpoint for tasks

Adds GET /api/tasks/{id}/deployment-status which checks whether the
currently-deployed server binary includes the fix commits from the
task's latest execution. Uses git merge-base --is-ancestor to compare
commit hashes against the running version.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

1 files changed, 36 insertions, 0 deletions

diff --git a/internal/api/deployment.go b/internal/api/deployment.go
new file mode 100644
index 0000000..d927545
--- /dev/null
+++ b/internal/api/deployment.go
@@ -0,0 +1,36 @@
+package api
+
+import (
+	"database/sql"
+	"net/http"
+
+	"github.com/thepeterstone/claudomator/internal/deployment"
+)
+
+// handleGetDeploymentStatus returns whether the currently-deployed server
+// includes the commits that were produced by this task's latest execution.
+// GET /api/tasks/{id}/deployment-status
+func (s *Server) handleGetDeploymentStatus(w http.ResponseWriter, r *http.Request) {
+	id := r.PathValue("id")
+
+	tk, err := s.store.GetTask(id)
+	if err != nil {
+		writeJSON(w, http.StatusNotFound, map[string]string{"error": "task not found"})
+		return
+	}
+
+	exec, err := s.store.GetLatestExecution(tk.ID)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			// No execution yet — return status with no fix commits.
+			status := deployment.Check(nil, tk.Agent.ProjectDir)
+			writeJSON(w, http.StatusOK, status)
+			return
+		}
+		writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
+		return
+	}
+
+	status := deployment.Check(exec.Commits, tk.Agent.ProjectDir)
+	writeJSON(w, http.StatusOK, status)
+}