refactor(skills): consolidate managed skill library 94 -> 25

The managed-skill library was regenerated: 94 narrow per-incident skills
replaced by 25 broader ones (radiance-*, llamacpp-*, homepage-*, fleet/
endpoint ops). Git renders this as mass delete + mass add because whole
directories changed name; old content stays in history at 12c5e88.

Surface check: the 25 on disk are exactly the skills the harness advertises
this session.

agent/managed-skills/fandom-wiki-media-fetch/SKILL.md

@@ -0,0 +1,19 @@
+---
+name: fandom-wiki-media-fetch
+description: Fetch audio/image media from a Fandom wiki via its MediaWiki API when the wiki HTML pages 403 curl or hang headless browsers.
+---
+
+Goal: get direct media URLs (and files) from a starcraft.fandom.com-style Fandom wiki.
+
+Why this route: Fandom HTML pages return a ~5 KB JS shell to `curl` (403 via `read ...:raw`) and time out headless Chromium (`browser.open`/`goto` >30 s on quotation megapages). The MediaWiki API is plain JSON and answers plain curl.
+
+Steps:
+1. Find the content page's wikitext:
+   `curl -sL -A "Mozilla/5.0" "https://<wiki>.fandom.com/api.php?action=parse&page=<Page_Name>&prop=wikitext&format=json&formatversion=2"`
+   Top-level pages are often tabber/transclusion shells — follow the `{{:Subpage}}` / `{{TemplateName}}` references with the same call (e.g. `StarCraft_unit_quotations` → `/Protoss` → `Template:QuotesSC1Zealot`).
+2. Extract media names from the wikitext. StarCraft quotes use `{{sm2|File.ogg|displayed quote}}` inside `{{UnitQuoteBox|select=...}}` fields — match the quote text to pick the exact file.
+3. Resolve direct CDN URLs (works for images too):
+   `curl -sL -A "Mozilla/5.0" ".../api.php?action=query&prop=imageinfo&iiprop=url|size&format=json&formatversion=2&titles=File:A.ogg|File:B.jpg"`
+   → `query.pages[].imageinfo[0].url` = `https://static.wikia.nocookie.net/...` — downloadable with plain `curl -sfL`.
+4. To discover art on a unit page: `action=query&prop=images&imlimit=100&titles=<Page>`, filter titles (icon/art/portrait/Head/Render), then resolve the keepers via imageinfo. Note splash/head art naming: `File:Zealot SC2 Art1.jpg`, `File:Archon SC2 Head1.jpg`; some obvious guesses (SC1-era units' SC2 splash) do not exist — verify with imageinfo, absent pages return `missing` with no `imageinfo`.
+5. Verify downloads (`file sfx/*.ogg` → `Ogg data, Vorbis audio`) — a 403 body saves as a success with `-o` and no `-f`.