docs: fix 41 unresolved dartdoc references

Convert non-resolving [refs] in doc comments to backtick code-spans across 24
lib/ files (param/field names out of doc scope, method refs on other classes,
non-API strings like regex char-classes and command ids). Verified 0
"unresolved doc reference" warnings via `dart doc --validate-links`. The
dart-doc CI gate (test.yml) never ran before — Gitea Actions was inactive — so
this debt had accumulated unchecked.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

lib/widgets/src/clide_collapser_card.dart

@@ -4,9 +4,9 @@
 /// list of one: there is no separate single-card path, which keeps the model
 /// uniform and reliable.
 ///
-/// - **Collapsed** (default): a one-line ticker — the [label], the echoed
-///   [collapsedSummary] (the run's latest content line), a fixed-width [counter]
-///   ("3 steps"), and the aggregate [status] (spinner / check / cross). The
+/// - **Collapsed** (default): a one-line ticker — the `label`, the echoed
+///   `collapsedSummary` (the run's latest content line), a fixed-width `counter`
+///   ("3 steps"), and the aggregate `status` (spinner / check / cross). The
 ///   whole row is the toggle.
 /// - **Expanded**: a framed inner canvas wrapping the item cards; clicking the
 ///   frame BACKGROUND (padding, the gaps between items, the gutter — anywhere an
@@ -16,7 +16,7 @@
 ///
 /// Chrome is consistent across every collapser: the chevron is hard against the
 /// LEFT edge, the status icon hard against the RIGHT edge, the counter sits in a
-/// fixed-width slot just inboard of it, and [color] drives the border + the
+/// fixed-width slot just inboard of it, and `color` drives the border + the
 /// chevron/label tint so each instance keeps its visual identity through one
 /// widget. The inner item cards are content (they keep their OWN per-item status
 /// + stripe); the aggregate status/count/title shown here are computed by the