Remove the old chunked upload MCP tools from the remote tool surface so agents only see the simplified upload paths: HTTP multipart and ingest_file_base64.
Update docs and agent rules to stop advertising the chunked fallback while keeping staged uploads outside the vault and behind the existing ingest gate.
Validation: python3 -m unittest discover -v; python3 -m py_compile obsidian_wiki/mcp_server.py tests/test_mcp_server_remote.py; git diff --check