feat: add appointments, campaigns, admin, storage, tests and various updates

- Add new routers: admin, appointments, campaigns
- Add storage service and logging config
- Add migrations directory and test suite with pytest config
- Add supabase_migration_features.sql
- Update models, dependencies, config, and existing routers
- Remove whatsapp_service (deleted)
- Update pyproject.toml and uv.lock dependencies

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

supabase_migration_features.sql

@@ -0,0 +1,97 @@
+-- Contexta — Features Migration (Phase 1, 2, 3)
+-- Run this in your Supabase SQL Editor
+
+-- ══════════════════════════════════════════════════════════════
+-- PHASE 1 — Live Chat Inbox + Lead CRM
+-- ══════════════════════════════════════════════════════════════
+
+-- Add status to conversations (open → agent_handling → resolved)
+ALTER TABLE conversations
+    ADD COLUMN IF NOT EXISTS status VARCHAR(20) DEFAULT 'open',
+    ADD COLUMN IF NOT EXISTS last_agent_reply_at TIMESTAMPTZ;
+
+-- Add CRM fields to leads
+ALTER TABLE leads
+    ADD COLUMN IF NOT EXISTS status VARCHAR(20) DEFAULT 'new',
+    ADD COLUMN IF NOT EXISTS notes TEXT;
+
+-- ══════════════════════════════════════════════════════════════
+-- PHASE 2a — Appointment Booking
+-- ══════════════════════════════════════════════════════════════
+
+-- Add booking toggle to chatbots
+ALTER TABLE chatbots
+    ADD COLUMN IF NOT EXISTS booking_enabled BOOLEAN DEFAULT FALSE;
+
+-- Business hours per chatbot (one row per weekday)
+CREATE TABLE IF NOT EXISTS business_hours (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    chatbot_id UUID NOT NULL REFERENCES chatbots(id) ON DELETE CASCADE,
+    day_of_week INTEGER NOT NULL CHECK (day_of_week BETWEEN 0 AND 6), -- 0=Mon, 6=Sun
+    is_open BOOLEAN DEFAULT TRUE,
+    open_time TIME NOT NULL DEFAULT '09:00',
+    close_time TIME NOT NULL DEFAULT '17:00',
+    slot_duration_minutes INTEGER NOT NULL DEFAULT 60,
+    UNIQUE(chatbot_id, day_of_week)
+);
+CREATE INDEX IF NOT EXISTS idx_business_hours_chatbot ON business_hours(chatbot_id);
+ALTER TABLE business_hours ENABLE ROW LEVEL SECURITY;
+CREATE POLICY "business_hours_owner" ON business_hours FOR ALL USING (
+    chatbot_id IN (
+        SELECT c.id FROM chatbots c
+        JOIN companies co ON c.company_id = co.id
+        WHERE co.owner_id = auth.uid()
+    )
+);
+
+-- Appointments table
+CREATE TABLE IF NOT EXISTS appointments (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    chatbot_id UUID NOT NULL REFERENCES chatbots(id) ON DELETE CASCADE,
+    conversation_id UUID REFERENCES conversations(id) ON DELETE SET NULL,
+    customer_name TEXT NOT NULL,
+    customer_contact TEXT NOT NULL, -- email or phone
+    service TEXT,
+    slot_start TIMESTAMPTZ NOT NULL,
+    slot_end TIMESTAMPTZ NOT NULL,
+    status VARCHAR(20) DEFAULT 'pending' CHECK (status IN ('pending','confirmed','cancelled','completed')),
+    notes TEXT,
+    created_at TIMESTAMPTZ DEFAULT NOW()
+);
+CREATE INDEX IF NOT EXISTS idx_appointments_chatbot ON appointments(chatbot_id);
+CREATE INDEX IF NOT EXISTS idx_appointments_slot ON appointments(chatbot_id, slot_start);
+ALTER TABLE appointments ENABLE ROW LEVEL SECURITY;
+CREATE POLICY "appointments_owner" ON appointments FOR ALL USING (
+    chatbot_id IN (
+        SELECT c.id FROM chatbots c
+        JOIN companies co ON c.company_id = co.id
+        WHERE co.owner_id = auth.uid()
+    )
+);
+-- Allow anonymous inserts (customers booking without auth)
+CREATE POLICY "appointments_insert_public" ON appointments FOR INSERT WITH CHECK (true);
+
+-- ══════════════════════════════════════════════════════════════
+-- PHASE 2b — Telegram Campaigns
+-- ══════════════════════════════════════════════════════════════
+
+CREATE TABLE IF NOT EXISTS campaigns (
+    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
+    chatbot_id UUID NOT NULL REFERENCES chatbots(id) ON DELETE CASCADE,
+    title TEXT NOT NULL,
+    message TEXT NOT NULL,
+    status VARCHAR(20) DEFAULT 'draft' CHECK (status IN ('draft','sending','sent','failed')),
+    recipients_count INTEGER DEFAULT 0,
+    sent_count INTEGER DEFAULT 0,
+    created_at TIMESTAMPTZ DEFAULT NOW(),
+    sent_at TIMESTAMPTZ
+);
+CREATE INDEX IF NOT EXISTS idx_campaigns_chatbot ON campaigns(chatbot_id);
+ALTER TABLE campaigns ENABLE ROW LEVEL SECURITY;
+CREATE POLICY "campaigns_owner" ON campaigns FOR ALL USING (
+    chatbot_id IN (
+        SELECT c.id FROM chatbots c
+        JOIN companies co ON c.company_id = co.id
+        WHERE co.owner_id = auth.uid()
+    )
+);