fix(nc-review): render findings as blocks, not a table

.github/nc-review/rubric.md

@@ -273,4 +273,14 @@ before or after, no markdown fences. Schema:
   `warranted`, `duplicate`, `scope`, `changeset`, `contributing`.
 - `file` / `line` — where the finding is. Omit both if it is not tied to a
   specific location. Never guess a line number; omit it instead.
+- `detail` — Markdown, rendered as its own block under a heading. Line breaks
+  and fenced code blocks are preserved, so quote the offending lines when that
+  makes the point faster than describing them:
+
+  ```
+  "detail": "The captured reference is never used:\n\n```ts\nconst realRename = rename;\nrealRename; // silences unused-locals\n```\n\nSo the failure path is never exercised."
+  ```
+
+  Lead with what is wrong, then why it matters, then what would fix it. Two or
+  three sentences is usually right; go longer only when quoting code earns it.
 - `duplicate_of` — PR number as an integer, or `null`. Only when confident.

.github/workflows/nc-review.yml

@@ -483,14 +483,25 @@ jobs:
               echo
             fi
             if [ "$(jq '.findings | length' "$V")" -gt 0 ]; then
-              echo "| | Area | Where | Finding |"
-              echo "|---|---|---|---|"
-              jq -r '.findings[] |
-                "| \(if .severity == "blocking" then "🔴" elif .severity == "important" then "🟠" else "⚪" end)"
-                + " | `\(.area)`"
-                + " | \(if .file then "`\(.file)\(if .line then ":\(.line)" else "" end)`" else "—" end)"
-                + " | \(.detail | gsub("\n"; " ")) |"' "$V"
-              echo
+              # One block per finding rather than a table. Findings run to a
+              # paragraph or more, and a table cell forces all of that onto one
+              # line with newlines collapsed — unreadable at any width, and it
+              # squeezes the text into a narrow column. Blocks also let the
+              # detail keep its own line breaks and code formatting.
+              jq -r '
+                def icon: if . == "blocking" then "🔴"
+                          elif . == "important" then "🟠"
+                          else "⚪" end;
+                def rank: if . == "blocking" then 0
+                          elif . == "important" then 1
+                          else 2 end;
+                .findings
+                | sort_by(.severity | rank)
+                | .[]
+                | "**\(.severity | icon) \(.severity) · `\(.area)`"
+                  + (if .file then " · `\(.file)\(if .line then ":\(.line)" else "" end)`" else "" end)
+                  + "**\n\n\(.detail)\n"
+              ' "$V"
             fi
             echo "---"
             echo