feat: Add v2 architecture with multi-state support and orchestrator services

Major additions:
- Multi-state expansion: states table, StateSelector, NationalDashboard, StateHeatmap, CrossStateCompare
- Orchestrator services: trace service, error taxonomy, retry manager, proxy rotator
- Discovery system: dutchie discovery service, geo validation, city seeding scripts
- Analytics infrastructure: analytics v2 routes, brand/pricing/stores intelligence pages
- Local development: setup-local.sh starts all 5 services (postgres, backend, cannaiq, findadispo, findagram)
- Migrations 037-056: crawler profiles, states, analytics indexes, worker metadata

Frontend pages added:
- Discovery, ChainsDashboard, IntelligenceBrands, IntelligencePricing, IntelligenceStores
- StateHeatmap, CrossStateCompare, SyncInfoPanel

Components added:
- StateSelector, OrchestratorTraceModal, WorkflowStepper

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

backend/migrations/043_add_states_table.sql

@@ -0,0 +1,50 @@
+-- Migration 043: Add States Table
+--
+-- Creates the states table if it does not exist.
+-- Safe to run multiple times (idempotent).
+--
+-- Run with:
+--   CANNAIQ_DB_URL="postgresql://..." psql $CANNAIQ_DB_URL -f migrations/043_add_states_table.sql
+
+-- =====================================================
+-- 1) CREATE STATES TABLE
+-- =====================================================
+CREATE TABLE IF NOT EXISTS states (
+    id SERIAL PRIMARY KEY,
+    code TEXT NOT NULL UNIQUE,
+    name TEXT NOT NULL,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    updated_at TIMESTAMPTZ DEFAULT NOW()
+);
+
+-- =====================================================
+-- 2) INSERT CORE US STATES
+-- =====================================================
+INSERT INTO states (code, name) VALUES
+    ('AZ', 'Arizona'),
+    ('CA', 'California'),
+    ('CO', 'Colorado'),
+    ('FL', 'Florida'),
+    ('IL', 'Illinois'),
+    ('MA', 'Massachusetts'),
+    ('MD', 'Maryland'),
+    ('MI', 'Michigan'),
+    ('MO', 'Missouri'),
+    ('NV', 'Nevada'),
+    ('NJ', 'New Jersey'),
+    ('NY', 'New York'),
+    ('OH', 'Ohio'),
+    ('OK', 'Oklahoma'),
+    ('OR', 'Oregon'),
+    ('PA', 'Pennsylvania'),
+    ('WA', 'Washington')
+ON CONFLICT (code) DO NOTHING;
+
+-- =====================================================
+-- 3) ADD INDEX
+-- =====================================================
+CREATE INDEX IF NOT EXISTS idx_states_code ON states(code);
+
+-- =====================================================
+-- DONE
+-- =====================================================