wiki-lintlisted

# Lint the wiki The `lint` tool is the source of truth. It observes; it never writes. It runs on this session's project. ## Run Call `lint` (optionally with `exclude` globs such as `wiki/scratch/*`). The report lists, with exact paths and lines: | Category | Meaning | |---|---| | `dead_links` | wikilinks, embeds, and markdown links whose target, heading, or block is missing | | `ambiguous_targets` | a basename that matches more than one page | | `duplicate_basenames` | two pages with the same name in different folders | | `orphans` | pages nothing links to (links from `log.md` do not count) | | `unindexed_pages` | pages missing from `index.md` and every MOC | | `missing_frontmatter` | pages lacking required properties | | `empty_sections` | headings with nothing under them | | `stale_index_entries` | index links that do not resolve | | `read_errors` | pages that could not be parsed, including invalid frontmatter YAML | | `ledger_errors` | source records whose files or pages are missing | Report only what the tool found. It does not judge prose, style, or contradictions. A project's thread pages are not linted here; the `threads` tool reports a page it cannot read. A `wanted_pages` entry, a page a link names but nobody has written, is not a finding; the `stub` tool seeds it. ## Explain 1. Preserve the tool's paths, lines, targets, and counts. 2. Group by impact: broken navigation, ambiguous resolution, metadata quality, then maintainability. 3. Say when an orphan ma