feat(P05): ship infrastructure — Gitea API client, release notes, npm publishConfig, ciagent projects cmd, --project flag

---ci---
phase: 5
milestone: v1.0
plan: 05
task: SHIP-01-04 MULTI-01 MULTI-02
status: execute
---/ci---

src/types/config.ts

@@ -66,6 +66,13 @@ export interface GitConfig {
   auto_push: boolean;
 }
 
+export interface GiteaConfig {
+  base_url: string;
+  api_token_env: string;
+  owner: string;
+  repo: string;
+}
+
 export interface ProjectEntry {
   slug: string;
   name: string;
@@ -82,6 +89,7 @@ export interface CIAgentConfig {
   security: SecurityConfig;
   git: GitConfig;
   backend: BackendConfigSection;
+  gitea?: GiteaConfig;
 }
 
 export const DEFAULT_CIAGENT_CONFIG: CIAgentConfig = {
@@ -136,4 +144,10 @@ export const DEFAULT_CIAGENT_CONFIG: CIAgentConfig = {
       },
     },
   },
+  gitea: {
+    base_url: "https://git.cloudinit.dev",
+    api_token_env: "GITEA_TOKEN",
+    owner: "",
+    repo: "",
+  },
 };