feat: IPC additions for reminders/events/routines, ack tracking, tool management

- Extend IPC wire protocol: add ListReminders, ListEvents, ListProposedRoutines,
  DismissProposedRoutine, AcceptProposedRoutine IPC methods with request/response
  types. Update wire.go with new message kinds.
- Add ack_sends table (migration #5): tracks sev4 telegram repeat-til-ack
  delivery state with rule name + timestamp, indexed for dedup.
- Add Store.DeleteTool: permanently removes a tool row (for dismissing proposed
  tools), idempotent on missing tool.
- Update tick.go: wire new IPC handlers into daemon tick.

internal/ipc/api.go

@@ -173,6 +173,14 @@ type Tool struct {
 	Updated     time.Time `json:"updated"`
 }
 
+// chatReq / chatResp — text chat round-trip for the IPC Chat method.
+type chatReq struct {
+	Text string `json:"text"`
+}
+type chatResp struct {
+	Reply string `json:"reply"`
+}
+
 type proposeToolReq struct {
 	Name      string    `json:"name"`
 	Scope     string    `json:"scope"`
@@ -203,6 +211,25 @@ type listToolsResp struct {
 	Tools []Tool `json:"tools"`
 }
 
+// ProposedRoutine — a detected pattern awaiting human confirmation.
+type ProposedRoutine struct {
+	ID           int64   `json:"id"`
+	Action       string  `json:"action"`
+	Object       string  `json:"object"`
+	IntervalDays float64 `json:"interval_days"`
+	Status       string  `json:"status"` // proposed | accepted | dismissed
+	CreatedTs    int64   `json:"created_ts"`
+	ReminderID   *int64  `json:"reminder_id,omitempty"`
+}
+
+type listProposedRoutinesResp struct {
+	Routines []ProposedRoutine `json:"routines"`
+}
+
+type dismissProposedRoutineReq struct {
+	ID int64 `json:"id"`
+}
+
 // CoreAPI — what core exposes to modules. One Go interface, satisfied by:
 //   - the in-process store adapter (server.go storeAPI) — used by the daemon
 //     for modules that live in-process for now (router, delivery) and by tests,
@@ -243,14 +270,25 @@ type CoreAPI interface {
 	ProposeTool(ctx context.Context, name, utterance, scope string, ts time.Time) (bool, error)
 	EnableTool(ctx context.Context, name string, cmd []string, destructive bool, scope string, ts time.Time) error
 	DisableTool(ctx context.Context, name string) error
+	DeleteTool(ctx context.Context, name string) error
 	LookupTool(ctx context.Context, name string) (Tool, error)
 	ListTools(ctx context.Context, status string) ([]Tool, error)
 	RevertFact(ctx context.Context, key string) (int64, error)
 
+	// ListProposedRoutines returns proposed routines, newest first.
+	ListProposedRoutines(ctx context.Context) ([]ProposedRoutine, error)
+	// DismissProposedRoutine flips a proposed routine to 'dismissed'.
+	DismissProposedRoutine(ctx context.Context, id int64) error
+
 	// TickTrace returns the most recent tick's rule trace. The daemon caches
 	// this after every tick; the store adapter returns an error (trace is not
 	// persisted — it's a daemon-level cache).
 	TickTrace(ctx context.Context) (TickTrace, error)
+
+	// Chat routes a text utterance through the reactive handler's core path
+	// (router → dialogue → action → replier) and returns the reply text.
+	// No audio or stt/tts — for text channels (mavweb, telegram).
+	Chat(ctx context.Context, text string) (string, error)
 }
 
 // --- Rule trace / explanation DTOs ---