feat(P06): docs & hardening — AGENTS.md/README fixes, agent tests, Gitea tests, multi-project tests, version 0.7.0

---ci---
phase: 6
milestone: v0.7.0
plan: 06
task: P06-all
status: execute
---/ci---

src/core/gitea.test.ts

@@ -0,0 +1,191 @@
+import * as fs from "node:fs";
+import * as path from "node:path";
+import * as os from "node:os";
+import { GiteaClient, generateReleaseNotes, GiteaReleaseConfig } from "../core/gitea.js";
+
+const defaultConfig: GiteaReleaseConfig = {
+  baseUrl: "https://git.example.com",
+  token: "test-token-123",
+  owner: "testorg",
+  repo: "testrepo",
+};
+
+function makeReleaseResponse(overrides: Partial<{
+  id: number;
+  tag_name: string;
+  name: string;
+  body: string;
+  url: string;
+  html_url: string;
+  draft: boolean;
+  prerelease: boolean;
+}> = {}): Record<string, unknown> {
+  return {
+    id: overrides.id ?? 1,
+    tag_name: overrides.tag_name ?? "v1.0.0",
+    name: overrides.name ?? "v1.0.0",
+    body: overrides.body ?? "Release notes",
+    url: overrides.url ?? "https://git.example.com/api/v1/repos/testorg/testrepo/releases/1",
+    html_url: overrides.html_url ?? "https://git.example.com/testorg/testrepo/releases/tag/v1.0.0",
+    draft: overrides.draft ?? false,
+    prerelease: overrides.prerelease ?? false,
+  };
+}
+
+describe("GiteaClient", () => {
+  let originalFetch: typeof globalThis.fetch;
+
+  beforeEach(() => {
+    originalFetch = globalThis.fetch;
+  });
+
+  afterEach(() => {
+    globalThis.fetch = originalFetch;
+  });
+
+  describe("createRelease", () => {
+    it("creates a release via POST", async () => {
+      const client = new GiteaClient(defaultConfig);
+      globalThis.fetch = jest.fn().mockResolvedValue({
+        ok: true,
+        json: async () => makeReleaseResponse({ tag_name: "v1.0.0", name: "v1.0.0" }),
+      });
+
+      const release = await client.createRelease({
+        tag_name: "v1.0.0",
+        name: "v1.0.0",
+        body: "Initial release",
+      });
+
+      expect(release.tag_name).toBe("v1.0.0");
+      expect(globalThis.fetch).toHaveBeenCalledTimes(1);
+      const call = (globalThis.fetch as jest.Mock).mock.calls[0];
+      expect(call[0]).toContain("/releases");
+      expect(call[1].method).toBe("POST");
+      expect(call[1].headers.Authorization).toBe("token test-token-123");
+    });
+
+    it("throws on non-ok response", async () => {
+      const client = new GiteaClient(defaultConfig);
+      globalThis.fetch = jest.fn().mockResolvedValue({
+        ok: false,
+        status: 409,
+        text: async () => "Conflict: tag already exists",
+      });
+
+      await expect(client.createRelease({
+        tag_name: "v1.0.0",
+        name: "v1.0.0",
+        body: "",
+      })).rejects.toThrow("Gitea API error: 409");
+    });
+  });
+
+  describe("listReleases", () => {
+    it("lists releases via GET", async () => {
+      const client = new GiteaClient(defaultConfig);
+      globalThis.fetch = jest.fn().mockResolvedValue({
+        ok: true,
+        json: async () => [
+          makeReleaseResponse({ id: 1, tag_name: "v1.0.0" }),
+          makeReleaseResponse({ id: 2, tag_name: "v1.1.0" }),
+        ],
+      });
+
+      const releases = await client.listReleases();
+      expect(releases).toHaveLength(2);
+      expect(releases[0].tag_name).toBe("v1.0.0");
+      expect(releases[1].tag_name).toBe("v1.1.0");
+    });
+
+    it("throws on non-ok response", async () => {
+      const client = new GiteaClient(defaultConfig);
+      globalThis.fetch = jest.fn().mockResolvedValue({
+        ok: false,
+        status: 500,
+      });
+
+      await expect(client.listReleases()).rejects.toThrow("Gitea API error: 500");
+    });
+  });
+
+  describe("getReleaseByTag", () => {
+    it("returns release when found", async () => {
+      const client = new GiteaClient(defaultConfig);
+      globalThis.fetch = jest.fn().mockResolvedValue({
+        ok: true,
+        status: 200,
+        json: async () => makeReleaseResponse({ tag_name: "v1.0.0" }),
+      });
+
+      const release = await client.getReleaseByTag("v1.0.0");
+      expect(release).not.toBeNull();
+      expect(release!.tag_name).toBe("v1.0.0");
+    });
+
+    it("returns null on 404", async () => {
+      const client = new GiteaClient(defaultConfig);
+      globalThis.fetch = jest.fn().mockResolvedValue({
+        ok: false,
+        status: 404,
+      });
+
+      const release = await client.getReleaseByTag("v0.0.0");
+      expect(release).toBeNull();
+    });
+
+    it("throws on other non-ok status", async () => {
+      const client = new GiteaClient(defaultConfig);
+      globalThis.fetch = jest.fn().mockResolvedValue({
+        ok: false,
+        status: 500,
+      });
+
+      await expect(client.getReleaseByTag("v1.0.0")).rejects.toThrow("Gitea API error: 500");
+    });
+  });
+});
+
+describe("generateReleaseNotes", () => {
+  let dir: string;
+
+  beforeEach(() => {
+    dir = fs.mkdtempSync(path.join(os.tmpdir(), "ciagent-gitea-test-"));
+  });
+
+  afterEach(() => {
+    fs.rmSync(dir, { recursive: true, force: true });
+  });
+
+  it("parses git log into categorized sections", () => {
+    const gitDir = path.join(dir, "repo");
+    fs.mkdirSync(gitDir, { recursive: true });
+
+    const { execSync } = require("node:child_process");
+    execSync("git init", { cwd: gitDir, stdio: "pipe" });
+    execSync('git config user.email "test@test.com"', { cwd: gitDir, stdio: "pipe" });
+    execSync('git config user.name "Test"', { cwd: gitDir, stdio: "pipe" });
+
+    fs.writeFileSync(path.join(gitDir, "file1.txt"), "hello");
+    execSync("git add -A", { cwd: gitDir, stdio: "pipe" });
+    execSync('git commit -m "feat: add authentication"', { cwd: gitDir, stdio: "pipe" });
+
+    fs.writeFileSync(path.join(gitDir, "file2.txt"), "world");
+    execSync("git add -A", { cwd: gitDir, stdio: "pipe" });
+    execSync('git commit -m "fix: resolve login bug"', { cwd: gitDir, stdio: "pipe" });
+
+    execSync("git tag v1.0.0", { cwd: gitDir, stdio: "pipe" });
+
+    const notes = generateReleaseNotes(gitDir, null, "v1.0.0");
+    expect(notes).toContain("New Features");
+    expect(notes).toContain("add authentication");
+    expect(notes).toContain("Bug Fixes");
+    expect(notes).toContain("resolve login bug");
+  });
+
+  it("returns no-commits message when no commits found", () => {
+    const nonExistent = path.join(dir, "nonexistent");
+    const notes = generateReleaseNotes(nonExistent, null, "v0.0.0");
+    expect(notes).toContain("No commits found");
+  });
+});