feat: simplify git mounts to use direct URLs instead of repo references

- Change git mount schema from repo_id to remote_url
- Remove database lookups for git mount resolution
- Clone directly from URL at instance startup
- Simplify frontend UI to text input for Git URL
- Fix route ordering in git_repositories.py to prevent 422 errors
- Update all tests to use remote_url field

Breaking change: Git mounts now use remote_url instead of repo_id

apps/web/src/pages/config-profiles.tsx

@@ -19,7 +19,6 @@ import {
   type ResolvedProfile,
 } from "../api/config_profiles";
 import { listProjects } from "../api/projects";
-import { listAllUserRepositories, createExternalRepository, type GitRepository } from "../api/git_repositories";
 import type { Project } from "../types";
 import { listToolTypes, type ToolType } from "../api/tool_types";
 import { GitMountEditor } from "../components/git-mount-editor";
@@ -34,7 +33,6 @@ export const ConfigProfilesPage = () => {
   const [profiles, setProfiles] = useState<ConfigProfile[]>([]);
   const [projects, setProjects] = useState<Project[]>([]);
   const [toolTypes, setToolTypes] = useState<ToolType[]>([]);
-  const [repositories, setRepositories] = useState<GitRepository[]>([]);
 
   const [selectedProfileId, setSelectedProfileId] = useState<string | null>(null);
   const [isCreating, setIsCreating] = useState(false);
@@ -72,14 +70,6 @@ export const ConfigProfilesPage = () => {
       setProjects(projs || []);
       setToolTypes(types || []);
       
-      // Load all user repositories (including external ones)
-      try {
-        const allRepos = await listAllUserRepositories();
-        setRepositories(allRepos);
-      } catch {
-        setRepositories([]);
-      }
-      
       setStatus("ready");
     } catch {
       setStatus("error");
@@ -1257,16 +1247,7 @@ export const ConfigProfilesPage = () => {
               <div className="form-section">
                 <GitMountEditor
                   mounts={formData.git_mounts || []}
-                  repositories={repositories}
                   onChange={(git_mounts) => updateFormField("git_mounts", git_mounts)}
-                  onCreateRepository={async (name, remoteUrl) => {
-                    const repo = await createExternalRepository({
-                      name,
-                      remote_url: remoteUrl,
-                    });
-                    setRepositories((prev) => [...prev, repo]);
-                    return repo;
-                  }}
                 />
               </div>