test: Update version expectations to 2.7.0 and fix MCP server reference

- Update test_package_structure.py: Change version checks from 2.5.2 to 2.7.0
- Fix docs/QUICK_REFERENCE.md: Update server reference from server.py to server_fastmcp.py

Fixes 5 failing tests:
- test_cli_has_version
- test_mcp_has_version
- test_mcp_tools_has_version
- test_root_has_version
- test_documentation_references_correct_paths

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

tests/test_package_structure.py

@@ -24,7 +24,7 @@ class TestCliPackage:
         import skill_seekers.cli
 
         assert hasattr(skill_seekers.cli, "__version__")
-        assert skill_seekers.cli.__version__ == "2.5.2"
+        assert skill_seekers.cli.__version__ == "2.7.0"
 
     def test_cli_has_all(self):
         """Test that skill_seekers.cli package has __all__ export list."""
@@ -88,7 +88,7 @@ class TestMcpPackage:
         import skill_seekers.mcp
 
         assert hasattr(skill_seekers.mcp, "__version__")
-        assert skill_seekers.mcp.__version__ == "2.5.2"
+        assert skill_seekers.mcp.__version__ == "2.7.0"
 
     def test_mcp_has_all(self):
         """Test that skill_seekers.mcp package has __all__ export list."""
@@ -108,7 +108,7 @@ class TestMcpPackage:
         import skill_seekers.mcp.tools
 
         assert hasattr(skill_seekers.mcp.tools, "__version__")
-        assert skill_seekers.mcp.tools.__version__ == "2.5.2"
+        assert skill_seekers.mcp.tools.__version__ == "2.7.0"
 
 
 class TestPackageStructure:
@@ -212,7 +212,7 @@ class TestRootPackage:
         import skill_seekers
 
         assert hasattr(skill_seekers, "__version__")
-        assert skill_seekers.__version__ == "2.5.2"
+        assert skill_seekers.__version__ == "2.7.0"
 
     def test_root_has_metadata(self):
         """Test that skill_seekers root package has metadata."""