feat: initial release v0.3.0

- Support 9 chart types: line, bar, pie, scatter, bubble, donut, mixed, polar, radar
- Multi-format output: ANSI, SVG, PNG, Markdown
- Go + Fiber + gonum/plot
- Docker support
- Morandi color palette

docker-compose.yml

@@ -0,0 +1,17 @@
+version: '3.8'
+
+services:
+  chart-api:
+    build: .
+    container_name: picoclaw-chart
+    ports:
+      - "${SERVER_PORT:-3100}:3100"
+    environment:
+      - SERVER_PORT=${SERVER_PORT:-3100}
+      - BASE_URL=${BASE_URL:-http://localhost:3100}
+    restart: unless-stopped
+    healthcheck:
+      test: ["CMD", "wget", "-q", "--spider", "http://localhost:3100/api/v1/health"]
+      interval: 30s
+      timeout: 10s
+      retries: 3