Support Assistent persona packs via git and local sync.

Replace assistent-personas overlay seed with assistent-extensions SFTP and an assistent: section in extensions.yaml so personalities install like other extensions without private URLs in the public repo.

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

tests/test_manifests.py

@@ -3,7 +3,12 @@ from pathlib import Path
 import pytest
 
 from gpu_rent.errors import ConfigError
-from gpu_rent.manifests import parse_extensions, parse_models, repo_matches_runtime
+from gpu_rent.manifests import (
+    parse_extensions,
+    parse_models,
+    remote_root_for,
+    repo_matches_runtime,
+)
 
 
 def test_models_skips_version_zero(tmp_path: Path):
@@ -77,3 +82,24 @@ def test_extensions_requires_invalid(tmp_path: Path):
     )
     with pytest.raises(ConfigError, match="requires"):
         parse_extensions(path)
+
+
+def test_extensions_assistent_kind(tmp_path: Path):
+    path = tmp_path / "extensions.yaml"
+    path.write_text(
+        "assistent:\n"
+        "  - url: https://example.com/org/sample-pack.git\n"
+        "    ref: main\n"
+        "    dir: sample-pack\n"
+        "    requires: ollama\n",
+        encoding="utf-8",
+    )
+    repos = parse_extensions(path)
+    assert len(repos) == 1
+    assert repos[0].kind == "assistent"
+    assert repos[0].directory == "sample-pack"
+    assert remote_root_for(repos[0]) == (
+        "/mnt/swarm_data/Assistent/extensions/sample-pack"
+    )
+    assert repo_matches_runtime(repos[0], "ollama")
+    assert not repo_matches_runtime(repos[0], "none")