feat: Add KI-Einstiegsscript for comprehensive project overview

- Introduced `ki_project_overview.py` for automated analysis of EspoCRM project structure, entities, relationships, custom PHP classes, workflows, frontend adjustments, and internationalization.
- Created `ki-overview.sh` wrapper script for executing the Python script with various output options.
- Updated `README.md` to include a quick start section for the new KI entry script.
- Added detailed documentation in `KI_OVERVIEW_README.md` explaining the script's purpose, usage, and output format.
- Summarized the new features and files in `KI_OVERVIEW_SUMMARY.md`.
- Enhanced `.vscode/settings.json` to approve new scripts for execution.

.vscode/settings.json

@@ -32,6 +32,11 @@
         "/^python3 /var/lib/docker/volumes/vmh-espocrm_espocrm/_data/custom/scripts/validate_and_rebuild\\.py$/": {
             "approve": true,
             "matchCommandLine": true
-        }
+        },
+        "/^python3 custom/scripts/project_overview\\.py$/": {
+            "approve": true,
+            "matchCommandLine": true
+        },
+        "./custom/scripts/ki-overview.sh": true
     }
 }