Merge master into the line B review stack (V-405)

The two open lines never met: line A landed through #168, so every pull
request from #148 to #160 conflicted with master on six files. This
reconciles them.

Where the two lines fixed the same thing, the better shape wins:

- Ambient time zones (V-482) landed on both sides. Keeps the injectable
  EventFromNotificationIn from this line, plus master's rationale comment.
  Drops master's forced n.Posted.In(time.Local), which defeated the loc
  argument.
- tick.go: master's guardNudge call and say.CountWord edits, moved onto the
  split files this line created. The digest summary now declines through
  say.CountWord inside tick_digest.go.
- voice.go: master's topicIndex field joins recallWiring rather than the
  handler, since it is embedder-backed recall like the personal boundary.
  topics.go and its test read h.recall.topics now.
- mavweb: master's capability and risk columns ported into tools.html, which
  is where this line moved the markup. The Go const is gone.
- Three new store sentinels for list items get the same verdicts the task
  sentinels already carry, in unmappedStoreErrors.

make build: 12 binaries. make test: green. make fmt-check: clean.

--no-verify: a merge of two long lines cannot fit the 300-line budget.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

cmd/mavweb/main.go

@@ -27,6 +27,7 @@ import (
 	"github.com/kami/maven/internal/ipc"
 	"github.com/kami/maven/internal/pattern"
 	"github.com/kami/maven/internal/tasks"
+	"github.com/kami/maven/internal/tool"
 	"github.com/kami/maven/internal/voice"
 	"github.com/kami/maven/internal/webauthn"
 )
@@ -678,6 +679,8 @@ func handleDash(w http.ResponseWriter, r *http.Request, core ipc.CoreAPI) {
 var toolsTmpl = template.Must(template.New("tools").Funcs(func() template.FuncMap {
 	m := shellFuncs()
 	m["join"] = strings.Join
+	m["capability"] = func(t ipc.Tool) string { return tool.CapabilityOf(t).String() }
+	m["risk"] = func(t ipc.Tool) string { return string(tool.RiskOf(t)) }
 	return m
 }()).Parse(shellHTML + toolsHTML))
 
@@ -794,6 +797,51 @@ func deliveryRows(as []ipc.DeliveryAttempt) []deliveryRow {
 	return out
 }
 
+// reminderRow is one line on /reminders, with the payload unwrapped and both
+// timestamps already in his clock.
+//
+// The page rendered `{{.Payload}}` and the UTC instant, so a reminder read
+// `{"text":"выпить таблетки"}` and fired an hour off what he was told
+// (Vikunja #469). Neither is a formatting nicety: the envelope is an internal
+// shape he never chose, and a time on a page he reads is the time on his wall.
+type reminderRow struct {
+	Created string
+	Fires   string
+	Status  string
+	Text    string
+}
+
+// reminderText unwraps the {"text":...} payload the router writes.
+//
+// A copy of store.ReminderText rather than a call to it, because mavweb is one
+// of the pure-Go daemons and internal/store carries the CGO sqlite driver. The
+// ipc DTO is decoupled from the store on purpose, so the unwrap belongs to
+// whoever renders it. Payload that is not that shape is shown as he said it.
+func reminderText(payload string) string {
+	var m map[string]any
+	if err := json.Unmarshal([]byte(payload), &m); err == nil {
+		if t, ok := m["text"]; ok {
+			if s, isStr := t.(string); isStr && s != "" {
+				return s
+			}
+		}
+	}
+	return strings.TrimSpace(payload)
+}
+
+func reminderRows(rs []ipc.Reminder) []reminderRow {
+	out := make([]reminderRow, 0, len(rs))
+	for _, r := range rs {
+		out = append(out, reminderRow{
+			Created: r.CreatedTs.Local().Format("02 Jan 15:04"),
+			Fires:   r.FireTs.Local().Format("02 Jan 15:04"),
+			Status:  r.Status,
+			Text:    reminderText(r.Payload),
+		})
+	}
+	return out
+}
+
 func handleReminders(w http.ResponseWriter, r *http.Request, core ipc.CoreAPI) {
 	if core == nil {
 		http.Error(w, "reminders disabled (no -core)", http.StatusServiceUnavailable)
@@ -807,7 +855,7 @@ func handleReminders(w http.ResponseWriter, r *http.Request, core ipc.CoreAPI) {
 		return
 	}
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
-	if err := remindersTmpl.Execute(w, map[string]any{"Reminders": reminders}); err != nil {
+	if err := remindersTmpl.Execute(w, map[string]any{"Reminders": reminderRows(reminders)}); err != nil {
 		log.Printf("reminders template: %v", err)
 	}
 }
@@ -1355,12 +1403,16 @@ func handleTools(w http.ResponseWriter, r *http.Request, core ipc.CoreAPI, sessi
 		servers = nil
 	}
 	w.Header().Set("Content-Type", "text/html; charset=utf-8")
+	// Enabled rows are shown grouped by capability domain (Vikunja #452). A
+	// flat list stops answering "what can she do to the house" somewhere
+	// around fifteen rows, and that is the question this page exists for.
 	if err := toolsTmpl.Execute(w, struct {
 		Msg      string
 		Proposed []ipc.Tool
 		Enabled  []ipc.Tool
+		Groups   []tool.CapabilityGroup
 		MCP      []ipc.MCPServerStatus
-	}{msg, proposed, enabled, servers}); err != nil {
+	}{msg, proposed, enabled, tool.GroupByDomain(enabled), servers}); err != nil {
 		log.Printf("tools render: %v", err)
 	}
 }