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.

cmd/mavend/tick.go

@@ -10,6 +10,7 @@ package main
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"log"
 	"os"
@@ -440,6 +441,14 @@ func (t *tickLoop) trace() *loop.TickTrace {
 type daemonAPI struct {
 	ipc.CoreAPI
 	getTrace func() *loop.TickTrace
+	chatFn   func(ctx context.Context, text string) string
+}
+
+func (d *daemonAPI) Chat(ctx context.Context, text string) (string, error) {
+	if d.chatFn == nil {
+		return "", errors.New("mavend: chat not available")
+	}
+	return d.chatFn(ctx, text), nil
 }
 
 func (d *daemonAPI) TickTrace(ctx context.Context) (ipc.TickTrace, error) {

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 ---

internal/ipc/client.go

@@ -369,6 +369,30 @@ func (c *Client) ListTools(ctx context.Context, status string) ([]Tool, error) {
 	return r.Tools, nil
 }
 
+func (c *Client) DeleteTool(ctx context.Context, name string) error {
+	return c.call(ctx, MethodDeleteTool, disableToolReq{Name: name}, nil)
+}
+
+func (c *Client) ListProposedRoutines(ctx context.Context) ([]ProposedRoutine, error) {
+	var r listProposedRoutinesResp
+	if err := c.call(ctx, MethodListProposedRoutines, nil, &r); err != nil {
+		return nil, err
+	}
+	return r.Routines, nil
+}
+
+func (c *Client) DismissProposedRoutine(ctx context.Context, id int64) error {
+	return c.call(ctx, MethodDismissProposedRoutine, dismissProposedRoutineReq{ID: id}, nil)
+}
+
+func (c *Client) Chat(ctx context.Context, text string) (string, error) {
+	var r chatResp
+	if err := c.call(ctx, MethodChat, chatReq{Text: text}, &r); err != nil {
+		return "", err
+	}
+	return r.Reply, nil
+}
+
 func (c *Client) TickTrace(ctx context.Context) (TickTrace, error) {
 	var t TickTrace
 	if err := c.call(ctx, MethodTickTrace, nil, &t); err != nil {

internal/ipc/ipc_test.go

@@ -375,6 +375,131 @@ func TestCaller_Peercred(t *testing.T) {
 	}
 }
 
+// TestChatViaClient — Chat round-trips over the wire. Uses a custom CoreAPI
+// that implements Chat (storeAPI returns an error for it).
+func TestChatViaClient(t *testing.T) {
+	dir := t.TempDir()
+	sock := filepath.Join(dir, "maven.sock")
+	chatAPI := &chatTestAPI{}
+	srv, err := Listen(sock, chatAPI)
+	if err != nil {
+		t.Fatalf("listen: %v", err)
+	}
+	done := make(chan struct{})
+	go func() {
+		_ = srv.Serve()
+		close(done)
+	}()
+	t.Cleanup(func() {
+		_ = srv.Close()
+		<-done
+	})
+	cli, err := Dial(srv.Path())
+	if err != nil {
+		t.Fatalf("dial: %v", err)
+	}
+	t.Cleanup(func() { _ = cli.Close() })
+
+	reply, err := cli.Chat(context.Background(), "привет")
+	if err != nil {
+		t.Fatalf("Chat: %v", err)
+	}
+	if reply != "и тебе привет!" {
+		t.Fatalf("Chat = %q, want %q", reply, "и тебе привет!")
+	}
+}
+
+// chatTestAPI — a minimal CoreAPI that only implements Chat for testing.
+type chatTestAPI struct{}
+
+func (a *chatTestAPI) WriteFact(ctx context.Context, req WriteFactReq) (int64, error) {
+	return 0, ErrUnknownMethod
+}
+func (a *chatTestAPI) LatestFact(ctx context.Context, key string) (Fact, error) {
+	return Fact{}, ErrUnknownMethod
+}
+func (a *chatTestAPI) LatestFactBySource(ctx context.Context, key, source string) (Fact, error) {
+	return Fact{}, ErrUnknownMethod
+}
+func (a *chatTestAPI) Since(ctx context.Context, key string, now time.Time) (time.Duration, error) {
+	return 0, ErrUnknownMethod
+}
+func (a *chatTestAPI) Presence(ctx context.Context) (Presence, error) {
+	return Presence{}, ErrUnknownMethod
+}
+func (a *chatTestAPI) CreateReminder(ctx context.Context, fire time.Time, payload, cron string) (int64, error) {
+	return 0, ErrUnknownMethod
+}
+func (a *chatTestAPI) MarkReminder(ctx context.Context, id int64, status string) error {
+	return ErrUnknownMethod
+}
+func (a *chatTestAPI) ListReminders(ctx context.Context, n int) ([]Reminder, error) {
+	return nil, ErrUnknownMethod
+}
+func (a *chatTestAPI) RecordNudge(ctx context.Context, rule, channel, message string, ts time.Time) (int64, error) {
+	return 0, ErrUnknownMethod
+}
+func (a *chatTestAPI) ResolveNudge(ctx context.Context, id int64, outcome string, ts time.Time) error {
+	return ErrUnknownMethod
+}
+func (a *chatTestAPI) RecentOutcomes(ctx context.Context, rule string, n int) ([]string, error) {
+	return nil, ErrUnknownMethod
+}
+func (a *chatTestAPI) RecentFacts(ctx context.Context, n int) ([]Fact, error) {
+	return nil, ErrUnknownMethod
+}
+func (a *chatTestAPI) CalendarEvents(ctx context.Context, from, to time.Time) ([]Fact, error) {
+	return nil, ErrUnknownMethod
+}
+func (a *chatTestAPI) RecentNudges(ctx context.Context, n int) ([]Nudge, error) {
+	return nil, ErrUnknownMethod
+}
+func (a *chatTestAPI) WriteNote(ctx context.Context, ts time.Time, text string, embedding []float32, source string) (int64, error) {
+	return 0, ErrUnknownMethod
+}
+func (a *chatTestAPI) QueryNotes(ctx context.Context, embedding []float32, k int) ([]Note, error) {
+	return nil, ErrUnknownMethod
+}
+func (a *chatTestAPI) RecentNotes(ctx context.Context, n int) ([]Note, error) {
+	return nil, ErrUnknownMethod
+}
+func (a *chatTestAPI) ProposeTool(ctx context.Context, name, utterance, scope string, ts time.Time) (bool, error) {
+	return false, ErrUnknownMethod
+}
+func (a *chatTestAPI) EnableTool(ctx context.Context, name string, cmd []string, destructive bool, scope string, ts time.Time) error {
+	return ErrUnknownMethod
+}
+func (a *chatTestAPI) DisableTool(ctx context.Context, name string) error {
+	return ErrUnknownMethod
+}
+func (a *chatTestAPI) DeleteTool(ctx context.Context, name string) error {
+	return ErrUnknownMethod
+}
+func (a *chatTestAPI) ListProposedRoutines(ctx context.Context) ([]ProposedRoutine, error) {
+	return nil, ErrUnknownMethod
+}
+func (a *chatTestAPI) DismissProposedRoutine(ctx context.Context, id int64) error {
+	return ErrUnknownMethod
+}
+func (a *chatTestAPI) LookupTool(ctx context.Context, name string) (Tool, error) {
+	return Tool{}, ErrUnknownMethod
+}
+func (a *chatTestAPI) ListTools(ctx context.Context, status string) ([]Tool, error) {
+	return nil, ErrUnknownMethod
+}
+func (a *chatTestAPI) RevertFact(ctx context.Context, key string) (int64, error) {
+	return 0, ErrUnknownMethod
+}
+func (a *chatTestAPI) TickTrace(ctx context.Context) (TickTrace, error) {
+	return TickTrace{}, ErrUnknownMethod
+}
+func (a *chatTestAPI) Chat(ctx context.Context, text string) (string, error) {
+	if text == "привет" {
+		return "и тебе привет!", nil
+	}
+	return "поговорили.", nil
+}
+
 // TestDispatch_UnknownMethod — an unknown method over the wire comes back as
 // ErrUnknownMethod, not a panic or a dropped conn. The server must stay up
 // for the next (legitimate) request on the same conn.

internal/ipc/server.go

@@ -199,6 +199,10 @@ func (a *storeAPI) RevertFact(ctx context.Context, key string) (int64, error) {
 	return newID, mapErr(err)
 }
 
+func (a *storeAPI) Chat(ctx context.Context, text string) (string, error) {
+	return "", errors.New("store: chat not available via direct store API")
+}
+
 func (a *storeAPI) TickTrace(ctx context.Context) (TickTrace, error) {
 	return TickTrace{}, errors.New("store: tick trace not available via direct store API")
 }
@@ -215,6 +219,36 @@ func (a *storeAPI) ListTools(ctx context.Context, status string) ([]Tool, error)
 	return out, nil
 }
 
+func (a *storeAPI) DeleteTool(ctx context.Context, name string) error {
+	return mapErr(a.s.DeleteTool(ctx, name))
+}
+
+func (a *storeAPI) ListProposedRoutines(ctx context.Context) ([]ProposedRoutine, error) {
+	rs, err := a.s.ListProposedRoutines(ctx)
+	if err != nil {
+		return nil, mapErr(err)
+	}
+	out := make([]ProposedRoutine, len(rs))
+	for i, r := range rs {
+		out[i] = ProposedRoutine{
+			ID:           r.ID,
+			Action:       r.Action,
+			Object:       r.Object,
+			IntervalDays: r.IntervalDays,
+			Status:       r.Status,
+			CreatedTs:    r.CreatedTs.UnixMilli(),
+		}
+		if r.ReminderID != nil {
+			out[i].ReminderID = r.ReminderID
+		}
+	}
+	return out, nil
+}
+
+func (a *storeAPI) DismissProposedRoutine(ctx context.Context, id int64) error {
+	return mapErr(a.s.DismissProposedRoutine(ctx, id))
+}
+
 func toTool(t store.Tool) Tool {
 	return Tool{
 		Name: t.Name, Scope: t.Scope, Cmd: t.Cmd, Destructive: t.Destructive,
@@ -712,6 +746,30 @@ func (s *Server) dispatch(ctx context.Context, req Request) (json.RawMessage, er
 		}
 		return marshalResult(listToolsResp{Tools: out}), nil
 
+	case MethodDeleteTool:
+		var p disableToolReq
+		if err := unmarshalParams(req.Params, &p); err != nil {
+			return nil, err
+		}
+		return marshalResult(nil), api.DeleteTool(ctx, p.Name)
+
+	case MethodListProposedRoutines:
+		out, err := api.ListProposedRoutines(ctx)
+		if err != nil {
+			return nil, err
+		}
+		if out == nil {
+			out = []ProposedRoutine{}
+		}
+		return marshalResult(listProposedRoutinesResp{Routines: out}), nil
+
+	case MethodDismissProposedRoutine:
+		var p dismissProposedRoutineReq
+		if err := unmarshalParams(req.Params, &p); err != nil {
+			return nil, err
+		}
+		return marshalResult(nil), api.DismissProposedRoutine(ctx, p.ID)
+
 	case MethodRevertFact:
 		var p struct {
 			Key string `json:"key"`
@@ -725,6 +783,17 @@ func (s *Server) dispatch(ctx context.Context, req Request) (json.RawMessage, er
 		}
 		return marshalResult(map[string]int64{"new_id": newID}), nil
 
+	case MethodChat:
+		var p chatReq
+		if err := unmarshalParams(req.Params, &p); err != nil {
+			return nil, err
+		}
+		reply, err := api.Chat(ctx, p.Text)
+		if err != nil {
+			return nil, err
+		}
+		return marshalResult(chatResp{Reply: reply}), nil
+
 	case MethodTickTrace:
 		t, err := api.TickTrace(ctx)
 		if err != nil {

internal/ipc/wire.go

@@ -37,9 +37,13 @@ const (
 	MethodStoreEncryptionKey Method = "store_encryption_key"
 	MethodUnlock             Method = "unlock"
 	MethodLookupTool         Method = "lookup_tool"
-	MethodListTools          Method = "list_tools"
+	MethodListTools              Method = "list_tools"
-	MethodRevertFact         Method = "revert_fact"
+	MethodDeleteTool             Method = "delete_tool"
+	MethodListProposedRoutines   Method = "list_proposed_routines"
+	MethodDismissProposedRoutine Method = "dismiss_proposed_routine"
+	MethodRevertFact             Method = "revert_fact"
 	MethodTickTrace          Method = "tick_trace"
+	MethodChat               Method = "chat"
 )
 
 // Request — one frame from module to core. Params is the JSON-encoded argument

internal/store/ack.go

@@ -0,0 +1,71 @@
+package store
+
+import (
+	"context"
+	"fmt"
+	"time"
+)
+
+// WasAcked returns true when the rule has no pending (un-acked) telegram
+// nudges. A resolved nudge (acted/snoozed/ignored) means the user has seen
+// and dealt with it — the alarm is considered acked.
+func (s *Store) WasAcked(ctx context.Context, key string) (bool, error) {
+	var n int
+	err := s.db.QueryRowContext(ctx,
+		`SELECT COUNT(*) FROM nudges
+		  WHERE rule = ? AND channel = 'telegram' AND outcome = 'pending'`, key).Scan(&n)
+	if err != nil {
+		return false, fmt.Errorf("was acked %s: %w", key, err)
+	}
+	return n == 0, nil
+}
+
+// MarkSent records that a sev4 telegram nudge was sent (or re-sent) for the
+// given rule at the given time. Used by the repeat-til-ack loop to clock the
+// repeat interval.
+func (s *Store) MarkSent(ctx context.Context, key string, ts time.Time) error {
+	_, err := s.db.ExecContext(ctx,
+		`INSERT INTO ack_sends (rule, sent_at) VALUES (?, ?)`,
+		key, ts.UnixMilli())
+	if err != nil {
+		return fmt.Errorf("mark sent %s: %w", key, err)
+	}
+	return nil
+}
+
+// LastSent returns the most recent send timestamp for the given rule's
+// telegram nudge. Returns zero time if nothing has been sent yet (the initial
+// send goes through RecordNudge, not MarkSent, so the first MarkSent comes on
+// the repeat path — LastSent may legitimately be zero until then).
+func (s *Store) LastSent(ctx context.Context, key string) (time.Time, error) {
+	var millis int64
+	err := s.db.QueryRowContext(ctx,
+		`SELECT MAX(sent_at) FROM ack_sends WHERE rule = ?`, key).Scan(&millis)
+	if err != nil {
+		return time.Time{}, fmt.Errorf("last sent %s: %w", key, err)
+	}
+	if millis == 0 {
+		return time.Time{}, nil
+	}
+	return time.UnixMilli(millis).UTC(), nil
+}
+
+// MarkAcked marks ALL pending telegram nudges for the rule as "acted" —
+// stopping the repeat-til-ack loop. Called when the user acknowledges the
+// alarm (voice acknowledgment, Telegram callback, etc.).
+func (s *Store) MarkAcked(ctx context.Context, key string) error {
+	now := time.Now()
+	res, err := s.db.ExecContext(ctx,
+		`UPDATE nudges SET outcome = 'acted', outcome_ts = ?
+		  WHERE rule = ? AND channel = 'telegram' AND outcome = 'pending'`,
+		now.UnixMilli(), key)
+	if err != nil {
+		return fmt.Errorf("mark acked %s: %w", key, err)
+	}
+	n, _ := res.RowsAffected()
+	if n == 0 {
+		// no pending nudges — already acked or never sent; not an error.
+		return nil
+	}
+	return nil
+}

internal/store/migrations.go

@@ -26,6 +26,30 @@ ALTER TABLE reminders ADD COLUMN next_fire_ts INTEGER;`, // #2
 		meta       TEXT NOT NULL DEFAULT '{}',
 		created_ts INTEGER NOT NULL
 	);`, // #3 — long-term vector memory (persistent backend for internal/memory)
+	`CREATE TABLE IF NOT EXISTS events (
+		id         INTEGER PRIMARY KEY AUTOINCREMENT,
+		fact_id    INTEGER NOT NULL REFERENCES facts(id),
+		action     TEXT NOT NULL,
+		object     TEXT NOT NULL,
+		ts         INTEGER NOT NULL
+	);
+	CREATE INDEX IF NOT EXISTS idx_events_action_object ON events (action, object, ts DESC);
+	CREATE TABLE IF NOT EXISTS proposed_routines (
+		id            INTEGER PRIMARY KEY AUTOINCREMENT,
+		action        TEXT NOT NULL,
+		object        TEXT NOT NULL,
+		interval_days REAL NOT NULL,
+		status        TEXT NOT NULL DEFAULT 'proposed' CHECK (status IN ('proposed','accepted','dismissed')),
+		created_ts    INTEGER NOT NULL,
+		reminder_id   INTEGER REFERENCES reminders(id),
+		UNIQUE(action, object)
+	);`, // #4 — event extraction + pattern inference
+
+	`CREATE TABLE IF NOT EXISTS ack_sends (
+		rule      TEXT NOT NULL,
+		sent_at   INTEGER NOT NULL
+	);
+	CREATE INDEX IF NOT EXISTS idx_ack_sends_rule ON ack_sends (rule, sent_at DESC);`, // #5 — sev4 telegram repeat-til-ack tracking
 }
 
 // migrate applies every migration with a number greater than the DB's current

internal/store/tools.go

@@ -88,6 +88,15 @@ func (s *Store) EnableTool(ctx context.Context, name string, cmd []string, destr
 	return nil
 }
 
+// DeleteTool permanently removes a tool row. Used for "dismiss" on proposed
+// tools — there's no dismissed status, the proposal is simply gone and maven
+// can re-propose it later if the same gap is encountered. Idempotent: deleting
+// a tool that doesn't exist is a no-op.
+func (s *Store) DeleteTool(ctx context.Context, name string) error {
+	_, err := s.db.ExecContext(ctx, `DELETE FROM tools WHERE name = ?`, name)
+	return err
+}
+
 // DisableTool sets a tool's status from 'enabled' back to 'proposed'. This is
 // the "disable" act on the authed surface — the tool stays in the store (its
 // provenance preserved) but won't run until re-enabled. Idempotent: disabling