feat(sync): add branch & tag listing support and improve sync mirroring and sync log routing

ts/providers/classes.gitlabprovider.ts

@@ -85,6 +85,42 @@ export class GitLabProvider extends BaseProvider {
     return allGroups.map((g) => this.mapGroup(g));
   }
 
+  // --- Branches / Tags ---
+
+  async getBranches(projectFullPath: string, opts?: IListOptions): Promise<interfaces.data.IBranch[]> {
+    if (opts?.page) {
+      const branches = await this.client.getRepoBranches(projectFullPath, opts);
+      return branches.map((b) => ({ name: b.name, commitSha: b.commit.id }));
+    }
+    const all: interfaces.data.IBranch[] = [];
+    const perPage = opts?.perPage || 50;
+    let page = 1;
+    while (true) {
+      const branches = await this.client.getRepoBranches(projectFullPath, { ...opts, page, perPage });
+      all.push(...branches.map((b) => ({ name: b.name, commitSha: b.commit.id })));
+      if (branches.length < perPage) break;
+      page++;
+    }
+    return all;
+  }
+
+  async getTags(projectFullPath: string, opts?: IListOptions): Promise<interfaces.data.ITag[]> {
+    if (opts?.page) {
+      const tags = await this.client.getRepoTags(projectFullPath, opts);
+      return tags.map((t) => ({ name: t.name, commitSha: t.commit.id }));
+    }
+    const all: interfaces.data.ITag[] = [];
+    const perPage = opts?.perPage || 50;
+    let page = 1;
+    while (true) {
+      const tags = await this.client.getRepoTags(projectFullPath, { ...opts, page, perPage });
+      all.push(...tags.map((t) => ({ name: t.name, commitSha: t.commit.id })));
+      if (tags.length < perPage) break;
+      page++;
+    }
+    return all;
+  }
+
   // --- Project Secrets (CI/CD Variables) ---
 
   async getProjectSecrets(projectId: string): Promise<interfaces.data.ISecret[]> {