fix: action: test prediction #1150 — run-user-test baseline persona UX evidence (#1151) (#1152)

Fixes #1151

## Changes
Baseline UX persona evaluation (run-user-test formula). All 5 personas (tyler, alex, marcus, priya, sarah) ran against full stack. FAIL verdict: 0/5 completed — all blocked at wallet connector panel not rendering at 1280x720 viewport. Evidence file: evidence/user-test/2026-03-25.json with per-persona friction points, screenshots, and observations.

Reviewed-on: https://codeberg.org/johba/harb/pulls/1152
Reviewed-by: Disinto_bot <disinto_bot@noreply.codeberg.org>

evidence/user-test/2026-03-25.json

@@ -0,0 +1,96 @@
+{
+  "date": "2026-03-25",
+  "candidate_commit": "491755592a86b34f7761347cd8cc299652b02942",
+  "methodology": "Playwright headless chromium (1280x720) against local full stack (anvil + webapp + ponder + caddy). Each persona spec runs sequentially with chain state reset between runs via evm_snapshot/evm_revert.",
+  "personas": [
+    {
+      "name": "tyler",
+      "task": "passive-holder funnel: land → connect wallet → buy KRK → hold",
+      "completed": false,
+      "friction_points": [
+        "Wallet connector panel (.connectors-element) not visible after clicking mobile login icon — timeout at 10s",
+        "Desktop connect button not found at 1280x720 viewport — fell through to mobile fallback path"
+      ],
+      "screenshot_refs": [
+        "test-results/usertest/tyler/tyler-landing-page-2026-03-25T07-35-11-729Z.png"
+      ],
+      "notes": "Tyler skipped docs and went straight to connect wallet. Observed: 'Cool looking app! Let's goooo'. Copy feedback: 'Needs bigger BUY NOW button on landing page'. Blocked at wallet connection step."
+    },
+    {
+      "name": "alex",
+      "task": "passive-holder funnel: land → understand DeFi → connect wallet → buy KRK",
+      "completed": false,
+      "friction_points": [
+        "No 'New to DeFi?' or tutorial section on landing page for newcomers",
+        "No trust signals (Audited, Secure, Non-custodial badges) to reassure first-time users",
+        "Wallet connector panel (.connectors-element) not visible — timeout at 10s",
+        "Wallet connection errors lack beginner-friendly explanations"
+      ],
+      "screenshot_refs": [
+        "test-results/usertest/alex/alex-landing-page-2026-03-25T07-33-50-415Z.png",
+        "test-results/usertest/alex/alex-looking-for-help-2026-03-25T07-33-51-890Z.png"
+      ],
+      "notes": "Alex spent 7s on landing page looking for help/tutorials. Observed: 'This looks professional but I have no idea what I'm looking at'. Tokenomics question: 'What is staking? How do I make money from this?'. Gave up after wallet connection failed."
+    },
+    {
+      "name": "sarah",
+      "task": "passive-holder funnel: land → research → connect wallet → evaluate yield",
+      "completed": false,
+      "friction_points": [
+        "Landing page does not explain 'What is Harberger tax?' in simple terms",
+        "No About, Docs, or Team page found before wallet connection",
+        "Wallet connector panel (.connectors-element) not visible — timeout at 10s"
+      ],
+      "screenshot_refs": [
+        "test-results/usertest/sarah/sarah-landing-page-2026-03-25T07-34-52-636Z.png",
+        "test-results/usertest/sarah/sarah-looking-for-info-2026-03-25T07-34-53-821Z.png"
+      ],
+      "notes": "Sarah read the landing page carefully before connecting. Observed: 'Reading landing page carefully before connecting wallet', 'Looking for About, Docs, or Team page before doing anything else'. Blocked at wallet connection."
+    },
+    {
+      "name": "priya",
+      "task": "staker funnel: land → analyze mechanism design → connect wallet → evaluate staking",
+      "completed": false,
+      "friction_points": [
+        "No whitepaper, technical appendix, or formal specification found from app UI",
+        "No governance structure, DAO participation, or admin key disclosures visible",
+        "Wallet connector panel (.connectors-element) not visible — timeout at 10s"
+      ],
+      "screenshot_refs": [
+        "test-results/usertest/priya/priya-landing-page-2026-03-25T07-34-31-771Z.png",
+        "test-results/usertest/priya/priya-searching-for-docs-2026-03-25T07-34-33-347Z.png"
+      ],
+      "notes": "Priya found audit link but wanted full report. Tokenomics questions: 'What is the theoretical Nash equilibrium for tax rates?', 'What are the centralization risks? Who holds admin keys? Is there a timelock?'. Blocked at wallet connection."
+    },
+    {
+      "name": "marcus",
+      "task": "staker funnel: land → probe for exploits → connect wallet → test edge cases",
+      "completed": false,
+      "friction_points": [
+        "No 'Audited by X' badge prominently displayed on landing page",
+        "Wallet connector panel (.connectors-element) not visible — timeout at 10s"
+      ],
+      "screenshot_refs": [
+        "test-results/usertest/marcus/marcus-landing-page-2026-03-25T07-34-13-018Z.png"
+      ],
+      "notes": "Marcus immediately skeptical — 'what's the catch?'. Copy feedback: 'Landing page needs Audited by X badge prominently displayed'. Tokenomics question: 'What prevents someone from flash-loaning to manipulate VWAP?'. Blocked at wallet connection."
+    }
+  ],
+  "personas_completed": 0,
+  "personas_total": 5,
+  "critical_friction_points": [
+    "Wallet connector panel (.connectors-element) not rendering after clicking connect button at 1280x720 viewport — all 5 personas blocked",
+    "Desktop connect button (.connect-button--disconnected) not visible at 1280x720 — tests fall through to mobile login icon path which also fails",
+    "No onboarding/tutorial content for DeFi newcomers (alex, sarah)",
+    "No prominent audit badge or trust signals (marcus, alex)",
+    "No whitepaper or formal mechanism specification accessible from UI (priya)"
+  ],
+  "verdict": "fail",
+  "raw_reports": {
+    "tyler": "tmp/usertest-results/tyler-bags-morrison.json",
+    "alex": "tmp/usertest-results/alex-rivera.json",
+    "sarah": "tmp/usertest-results/sarah-park.json",
+    "priya": "tmp/usertest-results/dr-priya-malhotra.json",
+    "marcus": "tmp/usertest-results/marcus-flash-chen.json"
+  }
+}