feat(vibe-tests): add trends dashboard from nightly issue history

internal/vibe-tests/.gitignore

@@ -16,6 +16,10 @@ AGENTS.html.md
 # Test results (generated)
 results/
 
+# Trends dashboard (generated from GitHub issues by `trends-collect` / `trends-report`)
+trends.json
+trends-dashboard.html
+
 # Preview build temp dirs
 .preview-tmp*
 # .baseline/ is committed (real shadcn components for type checking)

internal/vibe-tests/README.md

@@ -118,6 +118,33 @@ For evaluation fairness, check `universal-eval.ts`:
 - Verify each branch is measuring the equivalent concept for its system
 - Watch for any target getting a skip/bonus the others don't
 
+## Trends Dashboard
+
+Each nightly run is posted as a GitHub issue labeled `vibe-test`, with a scoreboard
+table in the body. `trends-collect` reads every such issue, parses the scoreboard
+across the historical table layouts, and writes a normalized `trends.json`.
+`trends-report` injects that data into a single self-contained HTML dashboard —
+overall-score trend, Astryx-vs-Baseline gap with a moving average, per-dimension
+small multiples, and a sortable table linking back to each issue. No build step,
+no external chart deps (inline SVG).
+
+```bash
+# One shot: refresh data + rebuild the dashboard
+pnpm -F @astryxdesign/lns trends              # → trends-dashboard.html
+
+# Or run the stages separately
+pnpm -F @astryxdesign/lns trends:collect      # → trends.json
+pnpm -F @astryxdesign/lns trends:report       # trends.json → trends-dashboard.html
+
+# Point at a different repo/label
+pnpm -F @astryxdesign/lns trends -- --repo facebook/astryx --label vibe-test
+```
+
+Both `trends.json` and `trends-dashboard.html` are generated (gitignored). Runs that
+carry the label but aren't score reports — experiments, audits, failed runs — are
+excluded automatically; runs scored on the old 0–10 rubric are rescaled to 0–100 so
+the trend line stays consistent.
+
 ## Known Accepted Asymmetries
 
 These are intentional and documented; they slightly favor baseline, making Astryx wins more credible:
@@ -139,7 +166,10 @@ internal/vibe-tests/
 │   ├── build-previews.ts     # TSX → HTML compilation + tsc
 │   ├── screenshot-previews.ts # Playwright screenshots
 │   ├── build-report.ts       # Vite HTML report
-│   └── deploy-report.ts      # gh-pages deployment
+│   ├── deploy-report.ts      # gh-pages deployment
+│   ├── trends-collect.ts     # GitHub issues → trends.json time series
+│   ├── trends-report.ts      # trends.json → self-contained dashboard HTML
+│   └── trends-template/      # Dashboard HTML shell (data injected at build)
 ├── .baseline/           # Real shadcn/ui components for baseline tsc
 ├── results/             # Iteration results (gitignored)
 └── README.md            # This file

internal/vibe-tests/package.json

@@ -9,6 +9,9 @@
   },
   "scripts": {
     "harness": "tsx src/cli.ts",
+    "trends": "tsx src/cli.ts trends",
+    "trends:collect": "tsx src/trends-collect.ts",
+    "trends:report": "tsx src/trends-report.ts",
     "interactive": "tsx src/interactive.ts",
     "interactive:sample": "tsx src/interactive.ts --sample 5",
     "aggregate": "tsx src/universal-aggregate.ts",

internal/vibe-tests/src/cli.ts

@@ -12,6 +12,7 @@
 import {Command} from 'commander';
 import * as path from 'node:path';
 import * as fs from 'node:fs';
+import {execFileSync} from 'node:child_process';
 import type {Iteration} from './types.js';
 import {readJson} from './utils.js';
 
@@ -66,4 +67,62 @@ program
     }
   });
 
+/**
+ * Trends command — collect nightly GitHub-issue results into a time series
+ * and build the self-contained dashboard.
+ */
+program
+  .command('trends')
+  .description(
+    'Collect nightly vibe-test issues and build the trends dashboard',
+  )
+  .option(
+    '--collect-only',
+    'Only refresh trends.json; skip building the dashboard',
+  )
+  .option('--repo <slug>', 'GitHub repo to read issues from', 'facebook/astryx')
+  .option('--label <label>', 'Issue label to collect', 'vibe-test')
+  .option('--open', 'Print the dashboard path on completion')
+  .action(async options => {
+    const scriptDir = import.meta.dirname;
+    const trendsJson = path.join(scriptDir, '..', 'trends.json');
+    const dashboard = path.join(scriptDir, '..', 'trends-dashboard.html');
+
+    execFileSync(
+      'npx',
+      [
+        'tsx',
+        path.join(scriptDir, 'trends-collect.ts'),
+        '--repo',
+        options.repo,
+        '--label',
+        options.label,
+        '--out',
+        trendsJson,
+      ],
+      {stdio: 'inherit'},
+    );
+
+    if (options.collectOnly) {
+      return;
+    }
+
+    execFileSync(
+      'npx',
+      [
+        'tsx',
+        path.join(scriptDir, 'trends-report.ts'),
+        '--in',
+        trendsJson,
+        '--out',
+        dashboard,
+      ],
+      {stdio: 'inherit'},
+    );
+
+    if (options.open) {
+      console.log(`\nOpen: ${dashboard}`);
+    }
+  });
+
 program.parse();