feat: house tracker with home worker, alerts and listing map

Collects Pararius rent/buy listings into Postgres via a worker that runs on a
residential connection, sends Discord/ntfy alerts for new listings matching
rules, and shows an admin-only map, market stats and worker log.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_013HfF5tnChi8tkCx9svJP6D

src/lib/server/db/schema/house-tracker.ts

@@ -0,0 +1,128 @@
+import {
+	bigint,
+	boolean,
+	check,
+	doublePrecision,
+	index,
+	integer,
+	jsonb,
+	pgTable,
+	text,
+	uniqueIndex
+} from 'drizzle-orm/pg-core';
+import { sql } from 'drizzle-orm';
+import { id, timestamptz } from './helpers';
+
+// Created by scripts/house-tracker-migration.sql; keep both in sync.
+export const houseListings = pgTable(
+	'house_listings',
+	{
+		id: id(),
+		source: text('source').notNull(),
+		sourceId: text('source_id').notNull(),
+		externalId: text('external_id'),
+		url: text('url').notNull(),
+		offer: text('offer').notNull(),
+		propertyType: text('property_type').notNull(),
+		title: text('title'),
+		street: text('street'),
+		postalCode: text('postal_code'),
+		city: text('city'),
+		citySlug: text('city_slug'),
+		neighbourhood: text('neighbourhood'),
+		priceEur: integer('price_eur'),
+		areaM2: integer('area_m2'),
+		rooms: integer('rooms'),
+		bedrooms: integer('bedrooms'),
+		bathrooms: integer('bathrooms'),
+		constructionYear: integer('construction_year'),
+		energyLabel: text('energy_label'),
+		interior: text('interior'),
+		depositEur: integer('deposit_eur'),
+		availableFrom: text('available_from'),
+		contractType: text('contract_type'),
+		agent: text('agent'),
+		imageUrl: text('image_url'),
+		description: text('description'),
+		features: jsonb('features').$type<Record<string, string>>().notNull().default({}),
+		lat: doublePrecision('lat'),
+		lng: doublePrecision('lng'),
+		offeredAt: timestamptz('offered_at'),
+		firstSeenAt: timestamptz('first_seen_at').notNull().defaultNow(),
+		firstSeenLane: text('first_seen_lane').notNull().default('slow'),
+		lastSeenAt: timestamptz('last_seen_at').notNull().defaultNow(),
+		detailFetchedAt: timestamptz('detail_fetched_at'),
+		removedAt: timestamptz('removed_at'),
+		alertedAt: timestamptz('alerted_at'),
+		status: text('status'),
+		notes: text('notes')
+	},
+	(table) => [
+		check('house_listings_offer_check', sql`offer IN ('rent', 'buy')`),
+		check('house_listings_price_eur_check', sql`price_eur IS NULL OR price_eur >= 0`),
+		uniqueIndex('house_listings_source_idx').on(table.source, table.sourceId),
+		index('house_listings_active_idx')
+			.on(table.offer, table.firstSeenAt.desc())
+			.where(sql`removed_at IS NULL`),
+		index('house_listings_city_idx').on(table.source, table.offer, table.citySlug),
+		index('house_listings_details_idx')
+			.on(table.firstSeenAt.desc())
+			.where(sql`detail_fetched_at IS NULL`)
+	]
+);
+
+export const housePriceHistory = pgTable(
+	'house_price_history',
+	{
+		listingId: integer('listing_id')
+			.notNull()
+			.references(() => houseListings.id, { onDelete: 'cascade' }),
+		observedAt: timestamptz('observed_at').notNull().defaultNow(),
+		priceEur: integer('price_eur').notNull()
+	},
+	(table) => [index('house_price_history_listing_idx').on(table.listingId, table.observedAt)]
+);
+
+export const houseSearches = pgTable('house_searches', {
+	searchUrl: text('search_url').primaryKey(),
+	source: text('source').notNull(),
+	lane: text('lane').notNull(),
+	firstSyncedAt: timestamptz('first_synced_at').notNull().defaultNow(),
+	lastSyncedAt: timestamptz('last_synced_at').notNull().defaultNow(),
+	lastFound: integer('last_found').notNull().default(0)
+});
+
+export const houseWorkerRuns = pgTable(
+	'house_worker_runs',
+	{
+		id: bigint('id', { mode: 'number' }).primaryKey().generatedAlwaysAsIdentity(),
+		source: text('source').notNull(),
+		lane: text('lane').notNull(),
+		url: text('url').notNull(),
+		status: text('status').notNull(),
+		httpStatus: integer('http_status'),
+		found: integer('found'),
+		durationMs: integer('duration_ms'),
+		message: text('message'),
+		createdAt: timestamptz('created_at').notNull().defaultNow()
+	},
+	(table) => [index('house_worker_runs_created_idx').on(table.createdAt.desc())]
+);
+
+export const houseAlertRules = pgTable(
+	'house_alert_rules',
+	{
+		id: id(),
+		name: text('name').notNull(),
+		enabled: boolean('enabled').notNull().default(true),
+		offer: text('offer').notNull().default('rent'),
+		minPrice: integer('min_price'),
+		maxPrice: integer('max_price'),
+		minArea: integer('min_area'),
+		minBedrooms: integer('min_bedrooms'),
+		cities: text('cities').array().notNull().default([]),
+		propertyTypes: text('property_types').array().notNull().default([]),
+		createdAt: timestamptz('created_at').notNull().defaultNow()
+	},
+	() => [check('house_alert_rules_offer_check', sql`offer IN ('rent', 'buy')`)]
+);

src/lib/server/db/schema/index.ts

@@ -10,3 +10,4 @@ export * from './animaldex';
 export * from './lists';
 export * from './money-tracker';
 export * from './cs-prices';
+export * from './house-tracker';