feat(ui): add maintenance page for task management

* Implement maintenance page with task and log display
* Add backfill and metadata retry functionality
* Integrate grid component for project display in thoughts page
* Update types for maintenance tasks and logs
* Enhance sidebar and shell for new maintenance navigation

migrations/_old/011_household_knowledge.sql

@@ -0,0 +1,42 @@
+-- Extension 1: Household Knowledge Base
+-- Stores household facts and vendor contacts (single-user, no RLS)
+
+CREATE OR REPLACE FUNCTION update_updated_at_column()
+RETURNS TRIGGER AS $$
+BEGIN
+    NEW.updated_at = now();
+    RETURN NEW;
+END;
+$$ LANGUAGE plpgsql;
+
+CREATE TABLE IF NOT EXISTS household_items (
+    id         UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name       TEXT NOT NULL,
+    category   TEXT,
+    location   TEXT,
+    details    JSONB NOT NULL DEFAULT '{}',
+    notes      TEXT,
+    created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
+    updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE TABLE IF NOT EXISTS household_vendors (
+    id           UUID PRIMARY KEY DEFAULT gen_random_uuid(),
+    name         TEXT NOT NULL,
+    service_type TEXT,
+    phone        TEXT,
+    email        TEXT,
+    website      TEXT,
+    notes        TEXT,
+    rating       INTEGER CHECK (rating >= 1 AND rating <= 5),
+    last_used    DATE,
+    created_at   TIMESTAMPTZ NOT NULL DEFAULT now()
+);
+
+CREATE INDEX IF NOT EXISTS idx_household_items_category ON household_items(category);
+CREATE INDEX IF NOT EXISTS idx_household_vendors_service ON household_vendors(service_type);
+
+DROP TRIGGER IF EXISTS update_household_items_updated_at ON household_items;
+CREATE TRIGGER update_household_items_updated_at
+    BEFORE UPDATE ON household_items
+    FOR EACH ROW EXECUTE FUNCTION update_updated_at_column();