Add FIO scripts and remove .idea from tracking

- Add FIO bank scripts (fio 01-03, diagnostika, multi-account reporter)
- Remove .idea/ IDE config files from git (already in .gitignore)

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

.idea/FIO.iml

@@ -1,10 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<module type="PYTHON_MODULE" version="4">
-  <component name="NewModuleRootManager">
-    <content url="file://$MODULE_DIR$">
-      <excludeFolder url="file://$MODULE_DIR$/.venv" />
-    </content>
-    <orderEntry type="jdk" jdkName="Python 3.13 (FIO)" jdkType="Python SDK" />
-    <orderEntry type="sourceFolder" forTests="false" />
-  </component>
-</module>

.idea/misc.xml

@@ -1,7 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<project version="4">
-  <component name="Black">
-    <option name="sdkName" value="Python 3.12 (FIO)" />
-  </component>
-  <component name="ProjectRootManager" version="2" project-jdk-name="Python 3.13 (FIO)" project-jdk-type="Python SDK" />
-</project>