Initial scaffold: API service, K8s operator, and CRDs

Forgebot is a K8s operator + API service for dispatching AI agent
jobs from git forge commands. Includes:

- CRDs: AgentPool, AgentTask, ProviderQueue, RepositoryBinding
- API server with webhook handler, task queue, and comment proxy
- Operator controllers for task scheduling and job management
- Gitea provider with webhook parsing and signature verification
- PostgreSQL database with auto-migration
- Woodpecker CI pipelines and multi-stage Dockerfiles

internal/provider/gitea/client.go

@@ -0,0 +1,18 @@
+package gitea
+
+import (
+	"code.gitea.io/sdk/gitea"
+)
+
+type Client struct {
+	api *gitea.Client
+	url string
+}
+
+func NewClient(url, token string) *Client {
+	client, _ := gitea.NewClient(url, gitea.SetToken(token))
+	return &Client{
+		api: client,
+		url: url,
+	}
+}