ref(similarity-embeddings): Add feature flag (#62231)

Add issue similarity-embeddings feature flag to be used with Flagr

src/sentry/conf/server.py

@@ -1630,6 +1630,8 @@ SENTRY_FEATURES: dict[str, bool | None] = {
     "organizations:issue-stream-performance": False,
     # Enable issue stream performance improvements (cache)
     "organizations:issue-stream-performance-cache": False,
+    # Enable issue similarity embeddings
+    "organizations:issues-similarity-embeddings": False,
     # Enabled latest adopted release filter for issue alerts
     "organizations:latest-adopted-release-filter": False,
     # Enable metric alert charts in email/slack

src/sentry/features/__init__.py

@@ -132,6 +132,7 @@ default_manager.add("organizations:issue-search-use-cdc-primary", OrganizationFe
 default_manager.add("organizations:issue-search-use-cdc-secondary", OrganizationFeature, FeatureHandlerStrategy.REMOTE)
 default_manager.add("organizations:issue-stream-performance-cache", OrganizationFeature, FeatureHandlerStrategy.REMOTE)
 default_manager.add("organizations:issue-stream-performance", OrganizationFeature, FeatureHandlerStrategy.REMOTE)
+default_manager.add("organizations:issues-similarity-embeddings", OrganizationFeature, FeatureHandlerStrategy.REMOTE)
 default_manager.add("organizations:large-debug-files", OrganizationFeature, FeatureHandlerStrategy.INTERNAL)
 default_manager.add("organizations:latest-adopted-release-filter", OrganizationFeature, FeatureHandlerStrategy.REMOTE)
 default_manager.add("organizations:mep-rollout-flag", OrganizationFeature, FeatureHandlerStrategy.REMOTE)