chore: bootstrap housing research platform
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134
apps/api/migrations/202606180001_init.sql
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134
apps/api/migrations/202606180001_init.sql
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CREATE SCHEMA IF NOT EXISTS raw;
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CREATE SCHEMA IF NOT EXISTS bronze;
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CREATE SCHEMA IF NOT EXISTS silver;
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CREATE SCHEMA IF NOT EXISTS gold;
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CREATE SCHEMA IF NOT EXISTS app;
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CREATE SCHEMA IF NOT EXISTS audit;
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CREATE TABLE IF NOT EXISTS audit.data_sources (
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source_id BIGSERIAL PRIMARY KEY,
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name TEXT NOT NULL UNIQUE,
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source_type TEXT NOT NULL,
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url TEXT,
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cadence TEXT,
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reliability TEXT NOT NULL DEFAULT 'unknown',
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notes TEXT NOT NULL DEFAULT '',
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created_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE IF NOT EXISTS audit.ingestion_runs (
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run_id BIGSERIAL PRIMARY KEY,
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source_id BIGINT REFERENCES audit.data_sources(source_id),
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status TEXT NOT NULL,
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started_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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finished_at TIMESTAMPTZ,
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raw_uri TEXT,
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row_count INTEGER,
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error_message TEXT
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);
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CREATE TABLE IF NOT EXISTS silver.areas (
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area_id TEXT PRIMARY KEY,
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name TEXT NOT NULL,
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district TEXT NOT NULL,
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segment TEXT NOT NULL,
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notes TEXT NOT NULL DEFAULT '',
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE IF NOT EXISTS silver.area_monthly_metrics (
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area_id TEXT NOT NULL REFERENCES silver.areas(area_id),
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month TEXT NOT NULL CHECK (month ~ '^[0-9]{4}-[0-9]{2}$'),
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transaction_count INTEGER NOT NULL CHECK (transaction_count >= 0),
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transaction_price_psm DOUBLE PRECISION NOT NULL CHECK (transaction_price_psm >= 0),
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listing_count INTEGER NOT NULL CHECK (listing_count >= 0),
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listing_price_psm DOUBLE PRECISION NOT NULL CHECK (listing_price_psm >= 0),
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median_days_on_market DOUBLE PRECISION NOT NULL CHECK (median_days_on_market >= 0),
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rent_price_psm DOUBLE PRECISION NOT NULL CHECK (rent_price_psm >= 0),
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new_supply_units INTEGER NOT NULL CHECK (new_supply_units >= 0),
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land_residential_gfa_sqm DOUBLE PRECISION NOT NULL CHECK (land_residential_gfa_sqm >= 0),
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mortgage_rate_pct DOUBLE PRECISION NOT NULL CHECK (mortgage_rate_pct >= 0),
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policy_signal INTEGER NOT NULL DEFAULT 0 CHECK (policy_signal BETWEEN -2 AND 2),
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source TEXT NOT NULL DEFAULT 'manual',
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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PRIMARY KEY (area_id, month)
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);
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CREATE TABLE IF NOT EXISTS silver.neighborhoods (
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neighborhood_id TEXT PRIMARY KEY,
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area_id TEXT NOT NULL REFERENCES silver.areas(area_id),
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name TEXT NOT NULL,
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built_year INTEGER,
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property_type TEXT NOT NULL,
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metro_distance_m INTEGER,
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school_quality TEXT,
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notes TEXT NOT NULL DEFAULT '',
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now()
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);
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CREATE TABLE IF NOT EXISTS silver.neighborhood_monthly_metrics (
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neighborhood_id TEXT NOT NULL REFERENCES silver.neighborhoods(neighborhood_id),
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month TEXT NOT NULL CHECK (month ~ '^[0-9]{4}-[0-9]{2}$'),
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transaction_count INTEGER NOT NULL CHECK (transaction_count >= 0),
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transaction_price_psm DOUBLE PRECISION NOT NULL CHECK (transaction_price_psm >= 0),
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listing_count INTEGER NOT NULL CHECK (listing_count >= 0),
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listing_price_psm DOUBLE PRECISION NOT NULL CHECK (listing_price_psm >= 0),
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rent_price_psm DOUBLE PRECISION NOT NULL CHECK (rent_price_psm >= 0),
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median_days_on_market DOUBLE PRECISION NOT NULL CHECK (median_days_on_market >= 0),
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available_units INTEGER NOT NULL CHECK (available_units >= 0),
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source TEXT NOT NULL DEFAULT 'manual',
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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PRIMARY KEY (neighborhood_id, month)
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);
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CREATE TABLE IF NOT EXISTS gold.area_scores (
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area_id TEXT NOT NULL REFERENCES silver.areas(area_id),
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name TEXT NOT NULL,
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district TEXT NOT NULL,
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segment TEXT NOT NULL,
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month TEXT NOT NULL CHECK (month ~ '^[0-9]{4}-[0-9]{2}$'),
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investment_score DOUBLE PRECISION NOT NULL CHECK (investment_score BETWEEN 0 AND 100),
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recommendation TEXT NOT NULL,
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liquidity_score DOUBLE PRECISION NOT NULL CHECK (liquidity_score BETWEEN 0 AND 100),
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momentum_score DOUBLE PRECISION NOT NULL CHECK (momentum_score BETWEEN 0 AND 100),
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rent_support_score DOUBLE PRECISION NOT NULL CHECK (rent_support_score BETWEEN 0 AND 100),
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safety_margin_score DOUBLE PRECISION NOT NULL CHECK (safety_margin_score BETWEEN 0 AND 100),
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credit_support_score DOUBLE PRECISION NOT NULL CHECK (credit_support_score BETWEEN 0 AND 100),
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supply_risk_score DOUBLE PRECISION NOT NULL CHECK (supply_risk_score BETWEEN 0 AND 100),
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valuation_pressure_score DOUBLE PRECISION NOT NULL CHECK (valuation_pressure_score BETWEEN 0 AND 100),
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transaction_count INTEGER NOT NULL CHECK (transaction_count >= 0),
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transaction_price_psm DOUBLE PRECISION NOT NULL CHECK (transaction_price_psm >= 0),
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listing_count INTEGER NOT NULL CHECK (listing_count >= 0),
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listing_price_psm DOUBLE PRECISION NOT NULL CHECK (listing_price_psm >= 0),
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rent_price_psm DOUBLE PRECISION NOT NULL CHECK (rent_price_psm >= 0),
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median_days_on_market DOUBLE PRECISION NOT NULL CHECK (median_days_on_market >= 0),
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annual_rent_yield_pct DOUBLE PRECISION NOT NULL CHECK (annual_rent_yield_pct >= 0),
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listing_pressure_ratio DOUBLE PRECISION NOT NULL CHECK (listing_pressure_ratio >= 0),
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discount_pct DOUBLE PRECISION NOT NULL,
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price_momentum_pct DOUBLE PRECISION NOT NULL,
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volume_momentum_pct DOUBLE PRECISION NOT NULL,
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model_version TEXT NOT NULL DEFAULT 'sample-v1',
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computed_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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PRIMARY KEY (area_id, month)
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);
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CREATE TABLE IF NOT EXISTS app.watchlist_items (
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watchlist_item_id BIGSERIAL PRIMARY KEY,
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neighborhood_id TEXT REFERENCES silver.neighborhoods(neighborhood_id),
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area_id TEXT REFERENCES silver.areas(area_id),
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target_price_psm DOUBLE PRECISION CHECK (target_price_psm >= 0),
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status TEXT NOT NULL DEFAULT 'active',
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notes TEXT NOT NULL DEFAULT '',
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created_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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updated_at TIMESTAMPTZ NOT NULL DEFAULT now(),
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CHECK (neighborhood_id IS NOT NULL OR area_id IS NOT NULL)
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);
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CREATE INDEX IF NOT EXISTS idx_area_monthly_metrics_month ON silver.area_monthly_metrics(month);
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CREATE INDEX IF NOT EXISTS idx_neighborhoods_area ON silver.neighborhoods(area_id);
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CREATE INDEX IF NOT EXISTS idx_gold_area_scores_month ON gold.area_scores(month, investment_score DESC);
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CREATE INDEX IF NOT EXISTS idx_watchlist_status ON app.watchlist_items(status);
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