feat(plugin): add source identity foundation (#6454)

tests/fixtures/architecture/dependency-baseline.json

@@ -13,8 +13,8 @@
     "runtime_to_db": [],
     "workflow_to_db": []
   },
-  "edge_count": 6661,
-  "edge_sha256": "e276e75348004a89b7f10f3520ce5eb935130cf11a8b45dc371e79937f5d67e3",
+  "edge_count": 6676,
+  "edge_sha256": "4244dafa5ec5179e2cfbf005dca97f9dde678f9c45e780288bbbbaca36ff4de5",
   "edges": [
     "app -> app.runtime",
     "app -> app.runtime.compat",
@@ -3624,6 +3624,15 @@
     "app.db.adapters.outbox -> app.db.base",
     "app.db.adapters.outbox -> app.db.models",
     "app.db.adapters.outbox -> app.db.models.outbox",
+    "app.db.adapters.pluginidentity -> app.application",
+    "app.db.adapters.pluginidentity -> app.application.plugin",
+    "app.db.adapters.pluginidentity -> app.application.plugin.identity",
+    "app.db.adapters.pluginidentity -> app.db",
+    "app.db.adapters.pluginidentity -> app.db.models",
+    "app.db.adapters.pluginidentity -> app.db.models.pluginidentity",
+    "app.db.adapters.pluginidentity -> app.db.oper",
+    "app.db.adapters.pluginidentity -> app.db.oper.pluginidentity",
+    "app.db.adapters.pluginidentity -> app.db.uow",
     "app.db.adapters.site -> app.db",
     "app.db.adapters.site -> app.db.oper",
     "app.db.adapters.site -> app.db.oper.site",
@@ -3712,6 +3721,8 @@
     "app.db.models.passkey -> app.db.base",
     "app.db.models.plugindata -> app.db",
     "app.db.models.plugindata -> app.db.base",
+    "app.db.models.pluginidentity -> app.db",
+    "app.db.models.pluginidentity -> app.db.base",
     "app.db.models.site -> app.db",
     "app.db.models.site -> app.db.base",
     "app.db.models.siteicon -> app.db",
@@ -3788,6 +3799,10 @@
     "app.db.oper.plugindata -> app.db.base",
     "app.db.oper.plugindata -> app.db.models",
     "app.db.oper.plugindata -> app.db.models.plugindata",
+    "app.db.oper.pluginidentity -> app.db",
+    "app.db.oper.pluginidentity -> app.db.base",
+    "app.db.oper.pluginidentity -> app.db.models",
+    "app.db.oper.pluginidentity -> app.db.models.pluginidentity",
     "app.db.oper.site -> app.db",
     "app.db.oper.site -> app.db.base",
     "app.db.oper.site -> app.db.models",
@@ -6678,7 +6693,7 @@
     "app.workflow.actions.transfer_file -> app.workflow",
     "app.workflow.actions.transfer_file -> app.workflow.actions"
   ],
-  "module_count": 818,
+  "module_count": 822,
   "modules": [
     "app",
     "app.adapters",
@@ -6973,6 +6988,7 @@
     "app.application.plugin.config",
     "app.application.plugin.data",
     "app.application.plugin.folders",
+    "app.application.plugin.identity",
     "app.application.plugin.install",
     "app.application.plugin.lifecycle",
     "app.application.plugin.routes",
@@ -7062,6 +7078,7 @@
     "app.db.adapters.chain",
     "app.db.adapters.download",
     "app.db.adapters.outbox",
+    "app.db.adapters.pluginidentity",
     "app.db.adapters.site",
     "app.db.adapters.subscription",
     "app.db.adapters.transaction",
@@ -7085,6 +7102,7 @@
     "app.db.models.outbox",
     "app.db.models.passkey",
     "app.db.models.plugindata",
+    "app.db.models.pluginidentity",
     "app.db.models.site",
     "app.db.models.siteicon",
     "app.db.models.sitestatistic",
@@ -7106,6 +7124,7 @@
     "app.db.oper.message",
     "app.db.oper.passkey",
     "app.db.oper.plugindata",
+    "app.db.oper.pluginidentity",
     "app.db.oper.site",
     "app.db.oper.subscribe",
     "app.db.oper.subscribehistory",