fix(core): resolve default assistant via config + folder detection on every codebase registration

packages/adapters/src/community/forge/gitea/adapter.ts

@@ -33,6 +33,7 @@ import {
 } from '@archon/git';
 import * as db from '@archon/core/db/conversations';
 import * as codebaseDb from '@archon/core/db/codebases';
+import { resolveDefaultAssistant } from '@archon/core/config';
 import { parseAllowedUsers, isGiteaUserAuthorized } from './auth';
 import { splitIntoParagraphChunks } from '../../../utils/message-splitting';
 import type { WebhookEvent } from './types';
@@ -642,6 +643,7 @@ export class GiteaAdapter implements IPlatformAdapter {
       name: `${owner}/${repo}`,
       repository_url: repoUrlNoGit,
       default_cwd: canonicalPath,
+      ai_assistant_type: await resolveDefaultAssistant(canonicalPath),
     });
 
     getLog().info({ codebaseName: codebase.name, path: canonicalPath }, 'codebase_created');

packages/adapters/src/community/forge/gitlab/adapter.ts

@@ -32,6 +32,7 @@ import {
 } from '@archon/git';
 import * as db from '@archon/core/db/conversations';
 import * as codebaseDb from '@archon/core/db/codebases';
+import { resolveDefaultAssistant } from '@archon/core/config';
 import { parseAllowedUsers, isGitLabUserAuthorized, verifyWebhookToken } from './auth';
 import { splitIntoParagraphChunks } from '../../../utils/message-splitting';
 import type { GitLabWebhookEvent, GitLabIssue, GitLabMergeRequest } from './types';
@@ -592,6 +593,7 @@ Use 'glab mr view ${String(mr.iid)}' for full details and 'glab mr diff ${String
       name: projectPath,
       repository_url: repoUrlNoGit,
       default_cwd: canonicalPath,
+      ai_assistant_type: await resolveDefaultAssistant(canonicalPath),
     });
 
     getLog().info({ codebaseName: codebase.name, path: canonicalPath }, 'gitlab.codebase_created');

packages/adapters/src/forge/github/adapter.ts

@@ -32,6 +32,7 @@ import {
 } from '@archon/git';
 import * as db from '@archon/core/db/conversations';
 import * as codebaseDb from '@archon/core/db/codebases';
+import { resolveDefaultAssistant } from '@archon/core/config';
 import { createLogger } from '@archon/paths';
 import { parseAllowedUsers as parseGitHubAllowedUsers, isGitHubUserAuthorized } from './auth';
 import { splitIntoParagraphChunks } from '../../utils/message-splitting';
@@ -620,6 +621,7 @@ export class GitHubAdapter implements IPlatformAdapter {
       name: `${owner}/${repo}`,
       repository_url: repoUrlNoGit, // Store without .git for consistency
       default_cwd: canonicalPath,
+      ai_assistant_type: await resolveDefaultAssistant(canonicalPath),
     });
 
     getLog().info({ codebaseName: codebase.name, path: canonicalPath }, 'github.codebase_created');