Add support for pencatatan non-tender, swakelola, and pengadaan darurat packages across the library, CLI, and MCP tools.

Fix nested pemenang berkontrak parsing for pencatatan non-tender and pengadaan darurat pages.

Add national host guidance, README branding assets, GitHub Actions badge fixes, and attribution.

Tests passed:

tests/test_lpse_unit.py
tests/test_mcp_schemas.py
tests/test_cli_unit.py
tests/test_cache.py
tests/test_utils_unit.py
tests/test_mcp_search_index.py
tests/test_mcp_hosts.py

Integration tests were not run by request.