chore(skills): standards sweep — bring 42 bundled/optional skills up to hardline

Audited all 191 in-repo skills (77 bundled, 114 optional) against the
authoring standards (AGENTS.md hardline + PR #80800). Fixed 42:

- 8 overlong descriptions rewritten to <= 60 chars, one sentence, period
  (one-three-one-rule 525ch, drug-discovery 405ch, web-pentest 358ch,
  fitness-nutrition 352ch, neuroskill-bci 332ch, oss-forensics 320ch,
  computer-use 307ch, memento-flashcards 252ch)
- 24 skills with missing frontmatter fields: author (credited from git
  history: f-trycua, SHL0MS, teyrebaz33, haileymarshall, FurkanL0,
  teknium1), license, version, platforms, tags
- 7 machine-local paths scrubbed (/home/bb, /home/user, /home/ubuntu ->
  portable placeholders)
- 11 marketing-word intros reworded (Comprehensive/state-of-the-art)
- docs catalogs + per-skill pages regenerated, scope-disciplined

Deferred (not in this PR):
- 14 frontmatter/dir name mismatches — open PR #42788 already proposes
  the dir-rename approach for 4 of them; resolve there as one class
- 2 skills over 100k chars (pytorch-fsdp 159k, research-paper-writing
  103k) — need content splits into references/, separate PRs
- comfyui dangling related_skill resolves after the name-mismatch class

optional-skills/health/fitness-nutrition/SKILL.md

@@ -1,13 +1,9 @@
 ---
 name: fitness-nutrition
-description: >
-  Gym workout planner and nutrition tracker. Search 690+ exercises by muscle,
-  equipment, or category via wger. Look up macros and calories for 380,000+
-  foods via USDA FoodData Central. Compute BMI, TDEE, one-rep max, macro
-  splits, and body fat — pure Python, no pip installs. Built for anyone
-  chasing gains, cutting weight, or just trying to eat better.
+description: "Workout planning, macros, and body metrics via wger/USDA."
 platforms: [linux, macos, windows]
 version: 1.0.0
+author: Hailey Marshall (haileymarshall), Hermes Agent
 authors:
   - haileymarshall
 license: MIT

optional-skills/health/neuroskill-bci/SKILL.md

@@ -1,11 +1,6 @@
 ---
 name: neuroskill-bci
-description: >
-  Connect to a running NeuroSkill instance and incorporate the user's real-time
-  cognitive and emotional state (focus, relaxation, mood, cognitive load, drowsiness,
-  heart rate, HRV, sleep staging, and 40+ derived EXG scores) into responses.
-  Requires a BCI wearable (Muse 2/S or OpenBCI) and the NeuroSkill desktop app
-  running locally.
+description: "Use live BCI cognitive and mood state from NeuroSkill."
 platforms: [linux, macos, windows]
 version: 1.0.0
 author: Hermes Agent + Nous Research