Projects live at URLs, have owners, and are edited together live

A project is only ever at /p/<id>/<slug>; / is the index of the projects
you own or edit. Every project has an owner, who can name editors;
anyone with the link can view. Every edit saves itself, one request in
flight at a time, as a patch of the leaves that changed, and a websocket
(channels + daphne) carries presence and each committed write to
everyone else in the project. The first write to a leaf wins, and the
loser is told.

Undo is per person: a step undoes only if the leaves it touched still
hold what it left, so it never takes a collaborator's work with it.
Named snapshots replace saving, and restore as an ordinary write.

An empty symbol now survives the leaf round trip with `:nodes {}`.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

clips/urls.py

@@ -16,6 +16,10 @@ from django.urls import path
 from . import views
 
 urlpatterns = [
+    path("me", views.me),
+    path("login", views.login),
+    path("signup", views.signup),
+    path("logout", views.logout),
     path("detector", views.detector),
     path("sources", views.sources),
     path("extractions", views.extractions),
@@ -27,6 +31,9 @@ urlpatterns = [
     path("projects/<uuid:project_id>", views.project_detail),
     path("projects/<uuid:project_id>/leaves/<path:leaf_path>", views.leaf_detail),
     path("projects/<uuid:project_id>/revisions", views.revisions),
+    path("projects/<uuid:project_id>/revisions/<int:revision_id>/restore", views.restore),
+    path("projects/<uuid:project_id>/editors", views.editors),
+    path("projects/<uuid:project_id>/editors/<str:username>", views.editors),
     path("analyses", views.analyses),
     path("analyses/<str:key>", views.analysis_detail),
     path("blocks", views.blocks),