fix: unignore pyrightconfig.json from *.json gitignore rule

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: ImTotem

.gitignore

@@ -510,6 +510,7 @@ $RECYCLE.BIN/
 *.json
 !package.json
 !tsconfig.json
+!pyrightconfig.json
 
 # Generated nginx conf (envsubst output from .template)
 infra/nginx/bcsd-api.conf

pyrightconfig.json

@@ -0,0 +1,6 @@
+{
+  "venvPath": ".",
+  "venv": ".venv",
+  "pythonVersion": "3.12",
+  "include": ["src"]
+}