style(setup): lift text weight — prose becomes regular, outcomes bold

Dimmed explanatory prose blocks were hard to read against dark terminals. Shift the weight ladder up a notch:

- dimWrap() no longer dims. Multi-line prose (the step-intro copy, etc.) renders at the terminal's regular weight.
- Spinner outcome labels (done/failed/skipped) are now bold via runUnderSpinner, so each step's headline reads stronger than the body copy around it.
- Un-dim two command-hint blocks in auto.ts (docker-group setfacl + service restart; the socket-error remediation commands) — those are commands the user may need to type.

Dim is still used where it helps — (Ns) spinner timings, URLs, short inline parentheticals — and for the preview/debug blocks dim is explicitly reserved for: dumpTranscriptOnFailure tail and claude-assist streams.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

setup/lib/theme.ts

@@ -58,17 +58,14 @@ export function wrapForGutter(text: string, gutter: number): string {
 }
 
 /**
- * Wrap + dim together. Needed instead of `k.dim(wrapForGutter(...))`
- * because clack resets styling at each line break when rendering
- * multi-line log content — a single outer dim envelope only colors the
- * first line. Applying dim per-line gives each wrapped row its own
- * `\x1b[2m…\x1b[0m` envelope so the whole block reads as one block.
+ * Wrap multi-line explanatory prose to the clack gutter. Previously
+ * dimmed its output (hence the name) — that made body copy hard to read
+ * against dark terminals. Dim is now reserved for preview/debug blocks
+ * (failure transcript tails, claude-assist streams); prose renders at
+ * the terminal's regular weight.
  */
 export function dimWrap(text: string, gutter: number): string {
-  return wrapForGutter(text, gutter)
-    .split('\n')
-    .map((line) => k.dim(line))
-    .join('\n');
+  return wrapForGutter(text, gutter);
 }
 
 const ANSI_RE = /\x1b\[[0-9;]*m/g;