feat(content): migrate interactiveCopy into six typed collections

Move the six remaining bilingual datasets from app.js:160 into Astro
content collections so GuideSelector has data to drive. Mechanical copy
of 178 strings (160 localized pairs + 18 worker array strings) plus
the non-localized fields (status, path, command, score, icon, title,
number). Source field on commonSkills embedded from skillSources to
match the GuideSelectorData contract; if a URL changes, both this
entry and skillSources/<id>.json must be updated. Status kept on trees
even though GuideSelectorData omits it — index.html renders it.

Did not delete interactiveCopy from app.js: legacy page still consumes
it, and verify.mjs still asserts against it. Did not migrate the
labels (data.labels.*) — those live inside render functions in app.js
and belong to 15d.

src/content/workers/tests.json

@@ -0,0 +1,13 @@
+{
+  "id": "tests",
+  "en": [
+    "Verification worker",
+    "Receives: acceptance criteria + changed surface",
+    "Returns: failing case, passing checks, risk notes"
+  ],
+  "pt": [
+    "Worker de verificação",
+    "Recebe: critérios de aceitação + superfície alterada",
+    "Devolve: caso de falha, verificações passando e riscos"
+  ]
+}