fix(plugin): 按绑定仓库保留更新候选 (#6474)

* fix(plugin): preserve repository update candidates

* chore(ci): sync architecture ratchet baselines

* chore(ci): align canonical coverage baseline

* chore(ci): align coverage ratchet baseline

tests/fixtures/architecture/coverage-baseline.json

@@ -1,8 +1,8 @@
 {
   "application": {
-    "covered_lines": 9292,
-    "percent": 77.76,
-    "statements": 11949
+    "covered_lines": 9309,
+    "percent": 77.8,
+    "statements": 11965
   },
   "domain": {
     "covered_lines": 3390,

tests/fixtures/architecture/mypy-baseline.json

@@ -1462,7 +1462,8 @@
   },
   "app/chain/media.py": {
     "arg-type": 34,
-    "assignment": 15,
+    "assignment": 16,
+    "call-overload": 1,
     "comparison-overlap": 3,
     "no-any-return": 3,
     "no-untyped-def": 3,