feat: align workspace navigation with relocated projects

Use ~/yookr/projects for company repositories and ~/projects for personal groups. Add the company-root Walker entry, apply work Git identity below ~/yookr, and remove Bruno synchronization.

Filesystem relocation was previously completed on Zenith only; other hosts require their own relocation before adopting these shared paths.

modules/capabilities/git.nix

@@ -79,7 +79,7 @@ in
             contents = personal.git;
           }
           {
-            condition = "gitdir:${config.xdg.userDirs.projects}/work/";
+            condition = "gitdir:${config.home.homeDirectory}/yookr/";
             contents = work.git;
           }
           {