fix: give the common-skill buttons their own label and tagline

The seven selector buttons were rendering `kind` and `use`, which belong
to the detail panel. ponytail's button read "SIMPLIFICATION INSTINCT" and
a full paragraph of prose where today's page reads "SIMPLIFY" and
"minimum code that holds". English was wrong, not just Portuguese
missing, on all seven.

Those two lines are not in `interactiveCopy`, which is why task 05b had
nothing to migrate them from: the English lives in the
`full-guide/index.html` markup and the Portuguese in `translations.pt`.
Adds `label` and `tagline` to the `commonSkills` schema and to all seven
entries, both taken verbatim from those two sources, and points the
buttons at them. The panel keeps reading `kind` and `use`.

This closes the last 13 of the 102 `translations.pt` entries. Coverage in
`dist/full-guide/index.html` is now 102 of 102.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

src/content/config.ts

@@ -235,12 +235,22 @@ const skillWorkflow = defineCollection({
 // render time; here it is embedded to match the GuideSelectorData
 // contract. If the URL changes, both this entry and the matching
 // `skillSources/<id>.json` must be updated.
+//
+// `label` and `tagline` are the selector *button*'s two lines and are
+// distinct from `kind` and `use`, which belong to the detail panel:
+// ponytail's button reads "SIMPLIFY" / "minimum code that holds" while its
+// panel reads "SIMPLIFICATION INSTINCT" and a paragraph of prose. They are
+// not in `interactiveCopy` — the English lives in the `full-guide/index.html`
+// markup and the Portuguese in `translations.pt` — so task 05b had nothing
+// to migrate them from and the page rendered `kind`/`use` on the buttons.
 const commonSkills = defineCollection({
   type: 'data',
   schema: z.object({
     id: z.string(),
     number: z.string(),
     kind: localized,
+    label: localized,
+    tagline: localized,
     title: z.string(),
     rule: localized,
     use: localized,