feat(skill): add anydoc — office documents to GitHub-Flavored Markdown (#295)

* feat(skill): add anydoc core content and references

Add the anydoc skill content tree: SKILL.md (progressive-disclosure index
with frontmatter per ALLOWED_FIELDS), human-facing README, the five reference
files (formats, cli-reference, errors, workflows, sources), 24 committed
fixtures (valid + error cases), and a fixture-grounded eval manifest with 8
cases. Every documented behavior, exit code, and error message was verified
against the real pinned CLI (npx -y @firecrawl/anydoc@0.1.6); verbatim --help
and error transcripts are reproduced character-for-character.

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

* feat(skill): add anydoc wrapper script and unit tests

Implements scripts/anydoc, a stdlib-only Python wrapper around the pinned
@firecrawl/anydoc@0.1.6 CLI: convert/batch/info subcommands, global
--json/--dry-run, input and output pre-validation, friendly hints for the
no-OCR/encrypted/malformed/unsupported error classes, Node >= 20 and npx
availability checks, deterministic batch output naming with documented
duplicate/collision behavior, and exit codes 0/1/2. Adds offline unittest
suite (46 tests, real-CLI tests skip when npx is unavailable) and keeps the
wrapper contract documented in cli-reference.md and errors.md.

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

* feat(skill): ratchet anydoc evals to 14 grounded cases

Verify the pre-authored 8-case manifest and extend it with six
high-signal cases (PDF lower-fidelity pipeline, legacy .ppt table
flattening, ODP same-serializer, RTF, EPUB, CSV header promotion),
each grounded in real pinned-CLI runs against the committed fixtures.

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

* feat(skill): integrate anydoc into repo catalog and artifacts

Add the sorted anydoc catalog entry to README.md (between agent-skills
and api-design-and-evolution), regenerate the tracked catalog artifacts
(.claude-plugin/marketplace.json, .codex-plugin/plugin.json,
.agents/plugins/marketplace.json, llms.txt) with the ruby generators,
and add a routing note to documents/SKILL.md pointing office-document
to-markdown conversion at the anydoc skill.

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

* fix(skill): polish anydoc wrapper timeout, JSON shape, and docs

- run_cli raises CliTimeoutError on the 120s timeout; convert/batch with
  --json now emit one parseable JSON error envelope (error_class "timeout")
  on stdout before exiting, so --json always yields exactly one JSON doc
- batch JSON failure entries (pre-validation and CLI) now carry error_class
  ("io" for missing/dir inputs, mapped classes for CLI failures), so all
  batch failure entries share the same shape
- build_cli_command places -o/-f before the -- separator for dash-leading
  filenames, so `convert -f csv -- -weird` converts instead of misparsing
  ("unexpected second input"); absolute-path inputs unchanged
- workflows.md vault-ingestion recipe globs notes/* instead of docs/* and
  warns to run from a temp/vault dir, never touching repo-root docs/
- unit tests: +6 (timeout envelope x4, batch error_class shape,
  dash-leading filename); suite grows 46 -> 52

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

---------

Co-authored-by: factory-droid[bot] <138933559+factory-droid[bot]@users.noreply.github.com>

.codex-plugin/plugin.json

@@ -22,6 +22,7 @@
     "./agent-council",
     "./agent-evals-and-observability",
     "./agent-skills",
+    "./anydoc",
     "./api-design-and-evolution",
     "./artifact-pyramids",
     "./autogen",