…oofs and marketplace UI enhancements

- Replace 'Discover Verified AI Agents' with 'Before You Hire an AI Agent, Know Exactly What You're Getting'
- Update badge from 'Trusted Agent Infrastructure' to 'Trusted Agent Marketplace'
- Rewrite subtitle from feature list to value proposition
- Replace empty-state registry message with market-first narrative
- Add Buyers / Developers / Auditors role guidance cards
- Update nav tagline to 'Verify Before You Buy'
- Add meta description to index.html
- Add CSS for marketplace-hero__roles and marketplace-hero__role

- Replace MPL-2.0 with GNU Affero General Public License v3.0 (AGPL-3.0)
- Update README.md: AGPL badge, commercial license notice, official platform teaser
- Update README_CN.md: same changes in Simplified Chinese
- Add CLA.md: Contributor License Agreement enabling dual-license commercialization

- Remove redundant _CN variant files (CONTRIBUTING_CN, SECURITY_CN, CODE_OF_CONDUCT_CN)
- Add 'About the Author & Collaboration' section to README.md and README_CN.md
- Highlight student background and open call for collaborators in Web3/AI Agent/ZK/TEE/Audit

…, and access history

- SearchFilterBar: add Task Type (DeFi/Chatbot/DevOps/Data/Automation) and Price Range filters
- SearchFilterBar: add Sort Order dropdown (score, reputation, popular, price, freshness)
- LeaderboardSection: new component with 4 tabs (Top Scored / Best Reputation / Most Popular / Recently Audited)
- AccessHistoryCard: new component showing on-chain rental/purchase transaction history
- useAccessHistory: new hook to fetch access records from MarketplaceClient
- marketplaceClient: add getAccessRecords() method
- HomePage: wire up all new filters, sort, and leaderboard
- AgentDetailPage: integrate AccessHistoryCard below audit history
- styles.css: add CSS for sort-select, leaderboard, and access-history components
- All changes verified: tsc zero errors, vite build successful

- Rewrite README.md with badge strip, Mermaid architecture diagram and value-first narrative
- Add README_CN.md (Simplified Chinese version)
- Add LICENSE (Mozilla Public License 2.0)
- Add CONTRIBUTING.md / CONTRIBUTING_CN.md
- Add SECURITY.md / SECURITY_CN.md
- Add CODE_OF_CONDUCT.md / CODE_OF_CONDUCT_CN.md (Contributor Covenant 2.1)

…date mascot image (remove blue bg, beige inner)

…opo story, fix Mermaid syntax

…two-sided platform

… of the two-sided platform"

This reverts commit c1a3131.

…eport

- Add 'Platform Walkthrough & Live Demo' section walking buyers through
  the marketplace homepage, agent profile, 6-dimensional radar chart,
  scene suitability, trust guarantee flow, TEE attestation, audit
  history and on-chain gated reviews, with 8 live screenshots.
- Add 'Benchmark Audit Report — Mainstream LLM Agents' section grouping
  the live agents into three categories (Tier-1 general-purpose models,
  Agent-native & vertical models, failure cases) and reporting their
  audit verdicts under the same pipeline.
- Synchronize the same content into README_CN.md.
- Add docs/screenshots/ assets (8 PNGs).

- Update popo-mascot.png: remove the ping-pong table/net/legs from
  the mascot illustration; keep only Popo (the ping-pong ball with
  the verification shield) on a soft halo background. Also sync the
  same asset to frontend/public/popo-mascot.png so the marketplace
  uses the new artwork everywhere.
- README.md / README_CN.md: replace 'sits atop a table tennis table'
  wording, and add a 'Where you'll meet Popo on the platform' table
  documenting Popo's three real touchpoints in the marketplace
  (NavHeader brand mark, first-visit welcome toast, EmptyState
  illustration with popo-float animation), so the mascot section
  reflects the actual product.

…e racket emoji in author section

- Revert popo-mascot.png (top of README) and frontend/public/popo-mascot.png
  back to the original artwork (Popo on a ping-pong table). The previous
  table-removal change was made by mistake.
- Add docs/popo-icon.png — the cleaned ball-only Popo — as a small inline
  asset.
- Replace the trailing ping-pong-racket emoji (🏓) in the
  'About the Author & Meet Popo' section heading of README.md and
  README_CN.md with this small Popo icon, so the section now ends with the
  actual mascot rather than an unrelated emoji.

…reference

Removes the three-row touchpoint table (NavHeader / first-visit toast /
EmptyState) and the trailing 'trust signal' line from the
'About the Author & Meet Popo' section in both README.md and
README_CN.md. The section is now back to its original single-paragraph
mascot story.

…sion logs

- sandbox: add LLM-backed test agent (llmAgent.ts, Dockerfile.llm), update cdkConfig and testAgent server
- contracts: update env examples for edge deployments
- infra: add run-llm-ab-test.sh script, update Dockerfile and e2e scripts
- docs: update agent-integration-guide, verification-methods, and status docs
- security: remove regression-20260416-175024 directory (contained sensitive env/key data)
- frontend: no changes (preserved as-is)

Add global _usedProofHashes dedup to block re-submission of the same Groth16 proof across verifyAuditScore and verifyFingerprint. Split the Groth16 internal call helpers for 8- and 3-input verifiers, fix NatSpec, and add MockGroth16Verifier plus regression tests (Fixes ZhangJinHaHaHa#4).

Co-authored-by: Cursor <cursoragent@cursor.com>