Use actual artifact URLs instead of generic run link

Fetch the artifact list from the workflow run API and generate
per-artifact download links with sizes, instead of pointing every
row at the same run URL.

Co-Authored-By: Claude Opus 4.6 <[email protected]>

Author: JoeMatt

.github/workflows/c-cpp.yml

@@ -92,6 +92,23 @@ jobs:
         script: |
           const runUrl = `${context.serverUrl}/${context.repo.owner}/${context.repo.repo}/actions/runs/${context.runId}`;
 
+          // Fetch actual artifact list from this workflow run
+          const { data: { artifacts } } = await github.rest.actions.listWorkflowRunArtifacts({
+            owner: context.repo.owner,
+            repo: context.repo.repo,
+            run_id: context.runId,
+          });
+
+          let rows = '';
+          for (const a of artifacts) {
+            const dlUrl = `${runUrl}/artifacts/${a.id}`;
+            rows += `| ${a.name} | [${a.name}](${dlUrl}) | ${(a.size_in_bytes / 1024).toFixed(0)} KB |\n`;
+          }
+
+          if (!rows) {
+            rows = `| - | No artifacts found | - |\n`;
+          }
+
           const comments = await github.paginate(
             github.rest.issues.listComments,
             {
@@ -108,15 +125,11 @@ jobs:
             marker,
             '### Build Artifacts',
             '',
-            '| Platform | Download |',
-            '|----------|----------|',
-            '| Linux x86_64 (GCC) | [virtualjaguar_libretro.so](' + runUrl + ') |',
-            '| Linux x86_64 (Clang) | [virtualjaguar_libretro.so](' + runUrl + ') |',
-            '| Linux aarch64 | [virtualjaguar_libretro.so](' + runUrl + ') |',
-            '| macOS arm64 | [virtualjaguar_libretro.dylib](' + runUrl + ') |',
-            '| Windows x86_64 | [virtualjaguar_libretro.dll](' + runUrl + ') |',
+            '| Platform | Download | Size |',
+            '|----------|----------|------|',
+            rows.trim(),
             '',
-            '> Download artifacts from the [workflow run](' + runUrl + ').',
+            `> [Full workflow run](${runUrl})`,
             '',
             `<sub>Updated by CI at ${new Date().toISOString()}</sub>`,
           ].join('\n');