fix: add ignore=all to pro submodule to unblock contributor pushes (#209)

* fix: add ignore=all to pro submodule to unblock contributor pushes

The `pro` submodule references the private SynkraAI/aios-pro repo,
which causes `git push` to fail for open-source contributors who don't
have access to that repository. Setting `ignore = all` tells git to
skip checking the submodule state during diff/status/push, removing
the blocker while keeping the submodule reference intact for team
members who do have access.

Closes #105

* fix: use ignore=dirty instead of ignore=all for pro submodule

ignore=all hides gitlink commit changes which can mask submodule pointer
updates. ignore=dirty only hides untracked/modified files inside the
submodule while still showing when the recorded commit changes.

Author: nikolasdehor

.gitmodules

@@ -2,3 +2,4 @@
 	path = pro
 	url = https://github.com/SynkraAI/aios-pro.git
 	branch = main
+	ignore = dirty