Expose a check_ingest_opencode_readiness MCP tool for remote operators and run the same static preflight before launching OpenCode ingest jobs.
The preflight validates the OpenCode binary, required run flags, project AGENTS/skill context files, and can run a no-write smoke test that proves wiki-ingest loads successfully.
Document the remote ingest workflow and clarify that wiki-file-assets is tool-first, so empty resources/prompts lists are not a failure signal.
Validation: python3 -m unittest discover -v; python3 -m py_compile obsidian_wiki/mcp_ingest.py obsidian_wiki/mcp_server.py tests/test_mcp_ingest.py tests/test_mcp_server_remote.py; git diff --check; real OpenCode smoke test passed with opencode 1.17.13.