feat: initial KosmoConnect platform v0.1

Includes:
- Backend services: ingestion (:8001), weather API (:8002),
  gateway (:8003), billing (:8004) with BTCPay integration
- Shared asyncpg pool, TimescaleDB hypertable, Redis, Mosquitto MQTT
- React frontend: Dashboard (MapLibre) and Messaging (chat UI)
- Bridge daemon for Pi + Meshtastic (Serial/TCP T-Deck support)
- Production Docker Compose, Nginx reverse proxy, ops scripts
- DEPLOY.md with step-by-step deployment guide

backend/run-dev.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# KosmoConnect Backend Dev Runner
+# Usage: ./run-dev.sh [ingestion|api]
+
+SERVICE="${1:-}"
+if [ -z "$SERVICE" ]; then
+    echo "Usage: ./run-dev.sh [ingestion|api]"
+    exit 1
+fi
+
+cd "$(dirname "$0")"
+
+export PYTHONPATH="${PYTHONPATH:-}:$(pwd)/shared"
+
+if [ "$SERVICE" = "ingestion" ]; then
+    echo "Starting Ingestion Service..."
+    uvicorn ingestion.src.main:app --host 0.0.0.0 --port 8001 --reload
+elif [ "$SERVICE" = "api" ]; then
+    echo "Starting API Service..."
+    uvicorn api.src.main:app --host 0.0.0.0 --port 8002 --reload
+elif [ "$SERVICE" = "gateway" ]; then
+    echo "Starting Gateway Service..."
+    uvicorn gateway.src.main:app --host 0.0.0.0 --port 8003 --reload
+elif [ "$SERVICE" = "billing" ]; then
+    echo "Starting Billing Service..."
+    uvicorn billing.src.main:app --host 0.0.0.0 --port 8004 --reload
+else
+    echo "Unknown service: $SERVICE"
+    echo "Usage: ./run-dev.sh [ingestion|api]"
+    exit 1
+fi