Add local JSON daemon and route TUI/CLI through it.

A per-DataDir background process owns ticket JSON, history, and sync so
multiple TUI instances stay consistent; MCP token APIs are ready for phase 2.

Co-authored-by: Cursor <cursoragent@cursor.com>

internal/daemon/api/ticket_handlers.go

@@ -0,0 +1,147 @@
+package api
+
+import (
+	"net/http"
+
+	"task/internal/command"
+	"task/internal/ticket"
+)
+
+func (s *Server) handleListTickets(w http.ResponseWriter, r *http.Request) {
+	projectID := r.URL.Query().Get("projectId")
+	if projectID == "" {
+		writeErr(w, http.StatusBadRequest, "projectId query required")
+		return
+	}
+	if !requireMCPProject(r, projectID) {
+		writeErr(w, http.StatusForbidden, "mcp token project mismatch")
+		return
+	}
+	list, err := s.store.List(projectID)
+	if err != nil {
+		writeErr(w, http.StatusInternalServerError, err.Error())
+		return
+	}
+	writeJSON(w, http.StatusOK, list)
+}
+
+func (s *Server) handleGetTicket(w http.ResponseWriter, r *http.Request) {
+	id := r.PathValue("id")
+	t, err := s.store.Get(id)
+	if err != nil {
+		writeErr(w, http.StatusNotFound, err.Error())
+		return
+	}
+	if !requireMCPProject(r, t.ProjectID) {
+		writeErr(w, http.StatusForbidden, "mcp token project mismatch")
+		return
+	}
+	writeJSON(w, http.StatusOK, t)
+}
+
+func (s *Server) handleCreateTicket(w http.ResponseWriter, r *http.Request) {
+	var body ticket.Ticket
+	if err := readJSON(r, &body); err != nil {
+		writeErr(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	if !requireMCPProject(r, body.ProjectID) {
+		writeErr(w, http.StatusForbidden, "mcp token project mismatch")
+		return
+	}
+	cmd := &command.CreateTicket{Store: s.store, Ticket: body}
+	if err := s.history.Do(cmd); err != nil {
+		writeErr(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	s.notify(cmd.Ticket.ProjectID)
+	writeJSON(w, http.StatusCreated, cmd.Ticket)
+}
+
+func (s *Server) handleUpdateTicket(w http.ResponseWriter, r *http.Request) {
+	id := r.PathValue("id")
+	before, err := s.store.Get(id)
+	if err != nil {
+		writeErr(w, http.StatusNotFound, err.Error())
+		return
+	}
+	if !requireMCPProject(r, before.ProjectID) {
+		writeErr(w, http.StatusForbidden, "mcp token project mismatch")
+		return
+	}
+	var after ticket.Ticket
+	if err := readJSON(r, &after); err != nil {
+		writeErr(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	after.ID = id
+	if after.ProjectID == "" {
+		after.ProjectID = before.ProjectID
+	}
+	if !requireMCPProject(r, after.ProjectID) {
+		writeErr(w, http.StatusForbidden, "mcp token project mismatch")
+		return
+	}
+	cmd := &command.UpdateTicket{Store: s.store, Before: before, After: after}
+	if err := s.history.Do(cmd); err != nil {
+		writeErr(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	s.notify(after.ProjectID)
+	writeJSON(w, http.StatusOK, after)
+}
+
+func (s *Server) handleDeleteTicket(w http.ResponseWriter, r *http.Request) {
+	id := r.PathValue("id")
+	before, err := s.store.Get(id)
+	if err != nil {
+		writeErr(w, http.StatusNotFound, err.Error())
+		return
+	}
+	if !requireMCPProject(r, before.ProjectID) {
+		writeErr(w, http.StatusForbidden, "mcp token project mismatch")
+		return
+	}
+	cmd := &command.DeleteTicket{Store: s.store, Snapshot: before}
+	if err := s.history.Do(cmd); err != nil {
+		writeErr(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	s.notify(before.ProjectID)
+	w.WriteHeader(http.StatusNoContent)
+}
+
+func (s *Server) handleMoveTicket(w http.ResponseWriter, r *http.Request) {
+	id := r.PathValue("id")
+	before, err := s.store.Get(id)
+	if err != nil {
+		writeErr(w, http.StatusNotFound, err.Error())
+		return
+	}
+	if !requireMCPProject(r, before.ProjectID) {
+		writeErr(w, http.StatusForbidden, "mcp token project mismatch")
+		return
+	}
+	var body struct {
+		ToProjectID string `json:"toProjectId"`
+	}
+	if err := readJSON(r, &body); err != nil {
+		writeErr(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	// MCP may only move within its project (no cross-project).
+	if ClientKind(r.Context()) == ClientMCP && body.ToProjectID != MCPProjectID(r.Context()) {
+		writeErr(w, http.StatusForbidden, "mcp cannot move tickets to another project")
+		return
+	}
+	after := before
+	after.ProjectID = body.ToProjectID
+	cmd := &command.MoveTicket{Store: s.store, TimeStore: s.timeStore, Before: before, After: after}
+	if err := s.history.Do(cmd); err != nil {
+		writeErr(w, http.StatusBadRequest, err.Error())
+		return
+	}
+	s.notify(before.ProjectID)
+	s.notify(body.ToProjectID)
+	writeJSON(w, http.StatusOK, cmd.After)
+}