feat: T4 wave 6 - reminders and morning digest, next steps UI, warnings and notifications UI

- In-app reminders: task due (skips rescheduled tasks, catch-up wording)
  and a per-user morning digest step in the daily job
- Frontend: "Als Nächstes" on the colony page, "Heute" on the dashboard,
  inspection-due card, season chip, apiary overview fields, cleanup
  sheet for ended colonies
- Frontend: plausibility warnings that stay until dismissed, withdrawal
  spans in the calendar, notification bell with categories and links,
  notification settings in the profile
- ARCHITECTURE.md: T4a sections 11.1-11.10, assumptions 31-41, handler
  table and daily job step order

Co-Authored-By: Claude Opus 5.5 (1M context) <[email protected]>

ApiCore-Frontend/src/lib/apiaries/field-types.ts

@@ -1,4 +1,5 @@
 import type { ApiaryStatus } from "./types";
+import type { NextStep, SeasonSegment } from "@/lib/autopilot/types";
 import type { Colony, ColonyCondition, ColonyStatus } from "@/lib/colonies/types";
 import type { Inspection } from "@/lib/inspections/types";
 import type { Queen } from "@/lib/queens/types";
@@ -12,14 +13,24 @@ export interface ColonyOverviewRow {
   code: string;
   status: ColonyStatus;
   strength: number | null;
+  occupiedFrames: number | null;
   broodStatus: ColonyCondition | null;
   feedStatus: ColonyCondition | null;
   healthStatus: ColonyCondition | null;
   /** ISO timestamp; always null when the caller may not read inspections. */
   lastInspectionDate: string | null;
-  /** Unread WARNUNG notifications visible to the caller. */
+  /**
+   * The day the next inspection is due (YYYY-MM-DD); null in the winter
+   * rest, when the interval rule is off and without `inspections:read`.
+   */
+  inspectionDueOn: string | null;
+  /** The season segment of the apiary today; null when it is unknown. */
+  segment: SeasonSegment | null;
+  /** Title of the first next step; null without one or without `tasks:read`. */
+  nextStepTitle: string | null;
+  /** Open suggestions of priority HIGH the caller may see. */
   openWarnings: number;
-  /** Unread KRITISCH notifications visible to the caller. */
+  /** Open suggestions of priority URGENT the caller may see. */
   openCritical: number;
 }
 
@@ -54,6 +65,7 @@ export interface OfflinePackV1 {
     | "colonyType"
     | "hiveType"
     | "strength"
+    | "occupiedFrames"
     | "broodStatus"
     | "feedStatus"
     | "healthStatus"
@@ -80,4 +92,9 @@ export interface OfflinePackV1 {
         | "relatedId"
       >[]
     | null;
+  /**
+   * The next steps per colony id (what `GET /colonies/:id/next-steps`
+   * returns as `steps`). Absent in packs cached before T4.
+   */
+  nextSteps?: Record<string, NextStep[]>;
 }

ApiCore-Frontend/src/lib/apiaries/offline-pack.fixtures.ts

@@ -20,6 +20,7 @@ export function packColony(id: string, code: string, overrides: Partial<PackColo
     colonyType: "PRODUCTION_COLONY",
     hiveType: "Zander",
     strength: 8,
+    occupiedFrames: 9,
     broodStatus: "GOOD",
     feedStatus: "GOOD",
     healthStatus: "GOOD",
@@ -35,10 +36,14 @@ export function overviewRow(colony: PackColony, overrides: Partial<ColonyOvervie
     code: colony.code,
     status: colony.status,
     strength: colony.strength,
+    occupiedFrames: colony.occupiedFrames,
     broodStatus: colony.broodStatus,
     feedStatus: colony.feedStatus,
     healthStatus: colony.healthStatus,
     lastInspectionDate: new Date().toISOString(),
+    inspectionDueOn: null,
+    segment: null,
+    nextStepTitle: null,
     openWarnings: 0,
     openCritical: 0,
     ...overrides,