feat: wire up the edge_control_plane private app

Installs the app when the flagsmith-private wheel provides it, and mounts
its two URL trees outside SaaS: proxy key management under
organisations/{id}/edge-proxy/ and the proxy endpoints under api/v1/proxy/.

Author: gagantrivedi

api/app/settings/common.py

@@ -1156,6 +1156,12 @@
         "USER_FILTER_PARSER": "scim.filters.UserFilterQuery",
     }
 
+EDGE_CONTROL_PLANE_INSTALLED = (
+    importlib.util.find_spec("edge_control_plane") is not None
+)
+if EDGE_CONTROL_PLANE_INSTALLED:
+    INSTALLED_APPS.append("edge_control_plane")
+
 DEFAULT_AUTO_FIELD = "django.db.models.AutoField"
 
 # Used to keep edge identities in sync by forwarding the http requests

api/app/urls.py

@@ -1,6 +1,7 @@
 import importlib
 
 from common.core.urls import urlpatterns as core_urlpatterns
+from common.core.utils import is_saas
 from django.conf import settings
 from django.contrib import admin
 from django.urls import include, path, re_path
@@ -124,6 +125,16 @@
         ),
     ]
 
+# SaaS images ship the private wheel, so is_saas() is the gate, not module presence.
+if settings.EDGE_CONTROL_PLANE_INSTALLED and not is_saas():  # pragma: no cover
+    urlpatterns += [
+        path(
+            "api/v1/organisations/<int:organisation_pk>/edge-proxy/",
+            include("edge_control_plane.management_urls"),
+        ),
+        path("api/v1/proxy/", include("edge_control_plane.urls")),
+    ]
+
 if settings.WORKFLOWS_LOGIC_INSTALLED:  # pragma: no cover
     workflow_views = importlib.import_module("workflows_logic.views")
     urlpatterns += [

api/pyproject.toml

@@ -242,6 +242,10 @@ ignore_missing_imports = true
 module = ["rbac.*"]
 ignore_missing_imports = true
 
+[[tool.mypy.overrides]]
+module = ["edge_control_plane.*"]
+ignore_missing_imports = true
+
 [[tool.mypy.overrides]]
 module = ["saml.*"]
 ignore_missing_imports = true