feat(forge): pluggable forge abstraction + GitLab and Gitea/Forgejo/Codeberg (#1913)

* refactor(forge): forge-neutral foundation (GitHub-only)

Decouple git-hosting from GitHub behind a neutral abstraction (issue #1616), GitHub-only for now; existing GitHub behaviour is unchanged.

- Forge manifest, neutral ForgeService contract, forge registry + resolver, and a client forge-module registry.
- GitHub code renamed to the neutral shape; PR/Issue attachment wording preserved.
- forge.search.response enums parse tolerantly (unknown kind/auth state degrade instead of breaking the client).
- createPullRequest reports typed CLI/auth errors instead of a generic message.
- forge-resolver host/remote caches are LRU-bounded.
- Forge host trust is explicit: only a known cloud host or a CLI-authenticated host is ever talked to; an unauthenticated GitHub Enterprise host fails resolution instead of routing to github.com.
- Docs: forge-providers guide, glossary and i18n forge-copy conventions, architecture and rpc-namespacing terminology.
- Vitest React Native mocks (unistyles, svg, linking, lucide) consolidated into shared aliased test-stubs.

* feat(forge): GitLab adapter, forge-aware UI, pipelines and approvals

GitLab adapter over the glab CLI on the neutral contracts: MR status, forge-aware UI, pipeline tree, and N-of-M approvals.

- threadIsResolved is part of the neutral timeline item.
- Pipeline load failures show an error instead of an empty section.
- Manual pipeline jobs render as pending.
- Fork/detached MR head pipelines are fetched by MR iid (glab ci get --merge-request).

* feat(forge): Gitea family adapter (Gitea, Forgejo, Codeberg)

One adapter over the tea CLI serving Gitea, Forgejo, and Codeberg on the neutral contracts.

- CI status aggregates commit statuses and Actions runs together.
- Gitea's terminal "warning" state maps to failure on server and client.
- Gitea Actions check details are reachable from the PR pane by workflowRunId.

* refactor(forge): localize compatibility handling

* test(forge): expect normalized GitLab facts

---------

Co-authored-by: Mohamed Boudra <boudra.moha@gmail.com>

packages/client/src/daemon-client.ts

@@ -40,7 +40,9 @@ import type {
   CheckoutPrCreateResponse,
   CheckoutPrMergeResponse,
   CheckoutPrMergeMethod,
+  CheckoutForgeSetAutoMergeResponse,
   CheckoutGithubSetAutoMergeResponse,
+  CheckoutForgeGetCheckDetailsResponse,
   CheckoutGithubGetCheckDetailsResponse,
   CheckoutPrStatusResponse,
   PullRequestTimelineResponse,
@@ -50,6 +52,8 @@ import type {
   StashListResponse,
   ValidateBranchResponse,
   BranchSuggestionsResponse,
+  ForgeSearchResponse,
+  ForgeSearchRequest,
   GitHubSearchResponse,
   GitHubSearchRequest,
   DirectorySuggestionsResponse,
@@ -342,6 +346,7 @@ export interface CreatePaseoWorktreeInput extends Pick<
   | "firstAgentContext"
   | "refName"
   | "action"
+  | "checkoutSource"
   | "githubPrNumber"
 > {}
 
@@ -359,7 +364,9 @@ type CheckoutPushPayload = CheckoutPushResponse["payload"];
 type CheckoutRefreshPayload = CheckoutRefreshResponse["payload"];
 type CheckoutPrCreatePayload = CheckoutPrCreateResponse["payload"];
 type CheckoutPrMergePayload = CheckoutPrMergeResponse["payload"];
+type CheckoutForgeSetAutoMergePayload = CheckoutForgeSetAutoMergeResponse["payload"];
 type CheckoutGithubSetAutoMergePayload = CheckoutGithubSetAutoMergeResponse["payload"];
+type CheckoutForgeGetCheckDetailsPayload = CheckoutForgeGetCheckDetailsResponse["payload"];
 type CheckoutGithubGetCheckDetailsPayload = CheckoutGithubGetCheckDetailsResponse["payload"];
 type CheckoutPrStatusPayload = CheckoutPrStatusResponse["payload"];
 type PullRequestTimelinePayload = PullRequestTimelineResponse["payload"];
@@ -370,6 +377,7 @@ type StashPopPayload = StashPopResponse["payload"];
 type StashListPayload = StashListResponse["payload"];
 type ValidateBranchPayload = ValidateBranchResponse["payload"];
 type BranchSuggestionsPayload = BranchSuggestionsResponse["payload"];
+type ForgeSearchPayload = ForgeSearchResponse["payload"];
 type GitHubSearchPayload = GitHubSearchResponse["payload"];
 type DirectorySuggestionsPayload = DirectorySuggestionsResponse["payload"];
 type PaseoWorktreeListPayload = PaseoWorktreeListResponse["payload"];
@@ -3579,6 +3587,23 @@ export class DaemonClient {
     });
   }
 
+  async checkoutForgeSetAutoMerge(
+    cwd: string,
+    input: { enabled: true; method: CheckoutPrMergeMethod } | { enabled: false },
+    requestId?: string,
+  ): Promise<CheckoutForgeSetAutoMergePayload> {
+    return this.sendNamespacedCorrelatedSessionRequest<"checkout.forge.set_auto_merge.response">({
+      requestId,
+      message: {
+        type: "checkout.forge.set_auto_merge.request",
+        cwd,
+        enabled: input.enabled,
+        ...(input.enabled ? { mergeMethod: input.method } : {}),
+      },
+      timeout: 60000,
+    });
+  }
+
   async checkoutGithubSetAutoMerge(
     cwd: string,
     input: { enabled: true; method: CheckoutPrMergeMethod } | { enabled: false },
@@ -3595,12 +3620,40 @@ export class DaemonClient {
     });
   }
 
+  async checkoutForgeGetCheckDetails(
+    input: {
+      cwd: string;
+      repoOwner?: string;
+      repoName?: string;
+      checkRunId?: number;
+      workflowRunId?: number;
+      changeRequestNumber?: number;
+    },
+    requestId?: string,
+  ): Promise<CheckoutForgeGetCheckDetailsPayload> {
+    return this.sendNamespacedCorrelatedSessionRequest<"checkout.forge.get_check_details.response">(
+      {
+        requestId,
+        message: {
+          type: "checkout.forge.get_check_details.request",
+          cwd: input.cwd,
+          repoOwner: input.repoOwner,
+          repoName: input.repoName,
+          checkRunId: input.checkRunId,
+          workflowRunId: input.workflowRunId,
+          changeRequestNumber: input.changeRequestNumber,
+        },
+        timeout: 60000,
+      },
+    );
+  }
+
   async checkoutGithubGetCheckDetails(
     input: {
       cwd: string;
-      repoOwner: string;
-      repoName: string;
-      checkRunId: number;
+      repoOwner?: string;
+      repoName?: string;
+      checkRunId?: number;
       workflowRunId?: number;
     },
     requestId?: string,
@@ -3775,6 +3828,7 @@ export class DaemonClient {
           : {}),
         ...(input.refName !== undefined ? { refName: input.refName } : {}),
         ...(input.action !== undefined ? { action: input.action } : {}),
+        ...(input.checkoutSource !== undefined ? { checkoutSource: input.checkoutSource } : {}),
         ...(input.githubPrNumber !== undefined ? { githubPrNumber: input.githubPrNumber } : {}),
       },
       responseType: "create_paseo_worktree_response",
@@ -3834,6 +3888,24 @@ export class DaemonClient {
     });
   }
 
+  async searchForge(
+    options: { cwd: string; query: string; limit?: number; kinds?: ForgeSearchRequest["kinds"] },
+    requestId?: string,
+  ): Promise<ForgeSearchPayload> {
+    return this.sendCorrelatedSessionRequest({
+      requestId,
+      message: {
+        type: "forge.search.request",
+        cwd: options.cwd,
+        query: options.query,
+        limit: options.limit,
+        kinds: options.kinds,
+      },
+      responseType: "forge.search.response",
+      timeout: 15000,
+    });
+  }
+
   async searchGitHub(
     options: { cwd: string; query: string; limit?: number; kinds?: GitHubSearchRequest["kinds"] },
     requestId?: string,