docs(astro): note legacy html landing sources (Sam & Codex)

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Build: pass | Tests: FAIL — 1 failed

.agent/skills/astro/SKILL.md

@@ -10,6 +10,15 @@ Use this skill for the static site generator that builds tenant homes and tenant
 This skill is also responsible for the transition from the current plain HTML
 site to the future Astro + Strapi setup in the `cms` jail.
 
+Legacy public sites still exist outside Astro. In particular:
+
+- `html/osa/` is the live source for `osa.smilepowered.org`
+- `html/clawdie/` is still a hand-edited public landing tree
+
+Do not assume every public HTML change belongs in `bootstrap/cms/*`. If the
+requested copy already exists under `html/`, edit that source directly unless
+the task is an explicit migration into Astro.
+
 ## Scope
 
 This skill covers:
@@ -91,6 +100,7 @@ Repo paths:
 - Landing source: `bootstrap/cms/clawdie-si/`
 - Docs source: `bootstrap/cms/clawdie-docs/`
 - Public docs source of truth: `docs/public/`
+- Legacy OSA landing source: `html/osa/`
 
 Inside the `cms` jail: