feat: workspace-first UI refresh - PR-3 projects page + routing cleanup

- Rewrite ProjectsPage with inline repository and workspace display
- Expandable project cards showing repos + workspace chips
- Inline workspace creation from project page (New Workspace button per repo)
- Workspace chips link to workspace detail page
- Sync/delete actions on workspace chips
- Update Project type: add ProjectWithRepos, RepositorySummary, WorkspaceSummary
- Update listProjects API to return ProjectWithRepos[]
- Update dashboard, sessions, config-profiles to use ProjectWithRepos
- Remove old /projects/:projectId route (RepoWorkspace)
- Add chevron icons to Icon component
- Projects page CSS: project-toggle, repo-block, workspace-grid, workspace-chip
- TypeScript + eslint clean

Quality gates: tsc --noEmit clean, eslint clean

apps/web/src/router.tsx

@@ -9,7 +9,6 @@ import { ProjectsPage } from "./pages/projects";
 import { GitRepositoriesPage } from "./pages/git-repositories";
 import { GitHistoryPage } from "./pages/git-history";
 import { ProjectSettingsPage } from "./pages/project-settings";
-import { RepoWorkspace } from "./pages/repo-workspace";
 import { SettingsPage, GeneralSettingsTab } from "./pages/settings";
 import { TerminalPage } from "./pages/terminal";
 import { ToolWorkshopPage } from "./pages/tool-workshop";
@@ -37,7 +36,6 @@ export const AppRouter = () => {
 			>
 				<Route index element={<HomePage />} />
 				<Route path="projects" element={<ProjectsPage />} />
-				<Route path="projects/:projectId" element={<RepoWorkspace />} />
 				<Route
 					path="projects/:projectId/repositories"
 					element={<GitRepositoriesPage />}