ui: Project dropdown in new task dialog, first field, defaults to /workspace/claudomator

- Moved working directory to first field, renamed to "Project"
- Replaced text input with a select populated from GET /api/workspaces
  (lists subdirs of /workspace dynamically)
- "Create new project…" option reveals a custom path input
- elaborate result handler sets select or falls back to new-project input
- Added GET /api/workspaces endpoint in server.go

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

1 files changed, 16 insertions, 0 deletions

diff --git a/internal/api/server.go b/internal/api/server.go
index dd4627c..af4710b 100644
--- a/internal/api/server.go
+++ b/internal/api/server.go
@@ -87,6 +87,7 @@ func (s *Server) routes() {
 	s.mux.HandleFunc("POST /api/scripts/start-next-task", s.handleStartNextTask)
 	s.mux.HandleFunc("POST /api/scripts/deploy", s.handleDeploy)
 	s.mux.HandleFunc("GET /api/ws", s.handleWebSocket)
+	s.mux.HandleFunc("GET /api/workspaces", s.handleListWorkspaces)
 	s.mux.HandleFunc("GET /api/health", s.handleHealth)
 	s.mux.Handle("GET /", http.FileServerFS(webui.Files))
 }
@@ -252,6 +253,21 @@ func (s *Server) handleResumeTimedOutTask(w http.ResponseWriter, r *http.Request
 	})
 }
 
+func (s *Server) handleListWorkspaces(w http.ResponseWriter, r *http.Request) {
+	entries, err := os.ReadDir("/workspace")
+	if err != nil {
+		writeJSON(w, http.StatusInternalServerError, map[string]string{"error": err.Error()})
+		return
+	}
+	var dirs []string
+	for _, e := range entries {
+		if e.IsDir() {
+			dirs = append(dirs, "/workspace/"+e.Name())
+		}
+	}
+	writeJSON(w, http.StatusOK, dirs)
+}
+
 func (s *Server) handleHealth(w http.ResponseWriter, r *http.Request) {
 	writeJSON(w, http.StatusOK, map[string]string{"status": "ok"})
 }