Add CP→CA→PI platform foundation on MapMil monorepo.

Unify parsing workers, analytics API with PostgreSQL, map UI, and PI distribution into centers/ with Docker Compose.

Co-authored-by: Cursor <cursoragent@cursor.com>

.env.example

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+# Telegram (CP workers) — copy from SocialParser/.env
+TELEGRAM_API_ID=12345678
+TELEGRAM_API_HASH=your_api_hash_here
+TELEGRAM_SESSION_PATH=/data/telegram.session
+
+# Optional Telegram proxy
+# TELEGRAM_PROXY_TYPE=socks5
+# TELEGRAM_PROXY_HOST=127.0.0.1
+# TELEGRAM_PROXY_PORT=1080
+
+# Platform internals
+INTERNAL_TOKEN=dev-internal-token
+TEST_PI_API_KEY=test-pi-api-key-change-me