refactor!: simplify runtime coordination #7

Keep financial ownership, atomic publication and refresh CAS.
Failed refresh leaves cookies untouched; logout still clears them.

Remove full-history candle prefetch and special metadata retries.
Use native Pino request context instead of parallel middleware.

BREAKING CHANGE: remove investment stateVersion, queued sync state,
and tbank-sync status progress/resources. Consumers must observe
resources through sync=observe with the updated frontend contract.

eslint-suppressions.json

@@ -4,11 +4,6 @@
       "count": 1
     }
   },
-  "src/common/logging/request-logging.middleware.ts": {
-    "sonarjs/no-nested-conditional": {
-      "count": 1
-    }
-  },
   "src/integrations/tbank/instrument-metadata.repository.ts": {
     "sonarjs/cognitive-complexity": {
       "count": 1
@@ -54,7 +49,7 @@
   },
   "src/modules/investments/instruments/application/candle.service.ts": {
     "sonarjs/cognitive-complexity": {
-      "count": 4
+      "count": 3
     },
     "sonarjs/no-nested-conditional": {
       "count": 4
@@ -169,7 +164,7 @@
   },
   "src/modules/investments/tbank-sync/tbank-sync.service.ts": {
     "sonarjs/cognitive-complexity": {
-      "count": 3
+      "count": 1
     },
     "sonarjs/no-nested-conditional": {
       "count": 7
@@ -203,4 +198,4 @@
       "count": 3
     }
   }
-}
+}