feat: Initial Porkbun DNS MCP Light server

- 3 specific tools: ping, list_domains, list_dns_records
- 1 pass-through tool: porkbun_api for full API access
- Safety system with READ/WRITE/INFRA access levels
- Embedded API documentation as MCP resource
- Starlette wrapper with /health endpoint
- Gitea Actions CI workflow for Docker build

.env.example

@@ -0,0 +1,17 @@
+# Porkbun API Credentials
+# Get your keys at: https://porkbun.com/account/api
+PORKBUN_API_KEY=pk1_your_api_key_here
+PORKBUN_SECRET_KEY=sk1_your_secret_key_here
+
+# Optional: API base URL (default shown)
+# PORKBUN_API_BASE=https://api.porkbun.com/api/json/v3
+
+# Safety Controls
+# Default: read-only mode (safest)
+PORKBUN_ALLOW_WRITES=false
+PORKBUN_ALLOW_INFRA=false
+
+# Safety Levels:
+# - READ (default): List domains, retrieve records, ping
+# - WRITE: Enable DNS record create/edit/delete, DNSSEC, URL forwarding
+# - INFRA: Enable nameserver and glue record changes (requires WRITE)