v0.13.1: fix dangling references in shipped skills

Fixes: shipped skills no longer point at files the plugin never ships

A read-only audit of v0.13.0 found skills that depended on files the build deliberately never ships (*spec.md, uncompressed.md) or that carried a wrong path. All 55 scripts and all 242 shipped files were already present and identical to the source; these were broken references, not missing files.

• markdown-hygiene lint: step 3 ran result.sh from markdown-hygiene-result/, a folder that does not exist. It now uses the shipped result/ folder.
• skill-optimize: every topic dispatch passed topics/<slug>.spec.md, which is never shipped. The topic assessment file topics/<slug>.md is now the required input, and the spec is passed only if it exists. The progressive-optimization topic carries its draft tier ranking inline.
• text-scrubber: the manual fallback and replacement table lived only in an unshipped spec; they are now in SKILL.md.
• rust-engineering: three pointers to an unshipped uncompressed.md removed.
• skill-index/finding, github/pr/file-viewed: wrong relative paths corrected.

Set me up

Paste this repo's link into Claude Code and say "set me up", or run:

claude plugin marketplace add https://github.com/electrified-cortex/skills-plugin
claude plugin install electrified-cortex-skills@electrified-cortex

Then restart Claude Code. Already installed? Update instead, once per scope that claude plugin list shows:

claude plugin marketplace update electrified-cortex
claude plugin update electrified-cortex-skills@electrified-cortex --scope user
claude plugin update electrified-cortex-skills@electrified-cortex --scope project