Add assistent-personas support and enhance model merging functionality

- Introduced `assistent-personas.yaml` to the project and updated the `.gitignore` accordingly.
- Implemented functions to seed and merge assistent personas from local files to the VM.
- Enhanced the model capture process to include merging of wanted models from the VM into `models.yaml`.
- Updated documentation to reflect changes in the assistent personas and model management processes.

Co-authored-by: Cursor <cursoragent@cursor.com>

src/gpu_rent/setup_wizard.py

@@ -16,6 +16,8 @@ from gpu_rent.llm_runtime import (
 )
 from gpu_rent.paths import (
     app_root,
+    assistent_personas_example_path,
+    assistent_personas_manifest_path,
     env_path,
     extensions_manifest_path,
     models_manifest_path,
@@ -54,6 +56,12 @@ def run_setup(
 
     _copy_if_missing(root / "env.example", env_path(), ".env", log)
     _copy_if_missing(root / "models.example.yaml", models_manifest_path(), "models.yaml", log)
+    _copy_if_missing(
+        assistent_personas_example_path(),
+        assistent_personas_manifest_path(),
+        "assistent-personas.yaml",
+        log,
+    )
     _copy_if_missing(
         root / "extensions.example.yaml", extensions_manifest_path(), "extensions.yaml", log
     )