feat(web): redesign preflight evidence ledger

[TPB003]

Linked Issue

Closes #112

Actual changes

• Redesigns the preflight evidence ledger with responsive forensic surfaces and supplied visual assets.
• Preserves current M5 Clear402, Live recovery, provenance, raw-evidence, and fail-closed behavior.
• Shows exact human-readable and base-unit amounts without truncation.
• Limits the mismatch tension view to successful simulations with a real amount mismatch and source-bound provenance.
• Adds fixed 1440x900, 1280x720, 390x844, and 360x800 visual regression coverage.

Non-goals

• No signing, private-key handling, mainnet submission, or new protocol claims.

Verification and evidence

• pnpm check: PASS, 52 files / 1264 tests, coverage gates and production smoke PASS.
• CLEAR402_ENABLED=false E2E_WRITE_SCREENSHOTS=0 pnpm test:e2e: PASS, 8 passed / 2 profile-specific skipped before fixed-viewport additions.
• CLEAR402_ENABLED=true E2E_WRITE_SCREENSHOTS=0 pnpm test:e2e: PASS, 9 passed / 1 skipped before fixed-viewport additions.
• External production smoke: PASS, 9/9.
• Responsive/accessibility suite: PASS, 10 passed / 2 profile-specific skipped.
• Four final visual QA screenshots: PASS, P0 0 / P1 0 / P2 0.
• CI: required quality gate running on the exact PR head.

Architecture and security impact

• Architecture impact: presentation and pure view-model additions only.
• Security or trust-boundary impact: none; provenance is derived from the report and never hardcoded.
• Raw evidence or Capability integrity impact: existing source-bound raw evidence remains unchanged.

Risk

• Large CSS and presentation diff; mitigated by exact-value unit tests, both runtime profiles, external smoke, and fixed-viewport geometry checks.

Maintainer decisions required

• None.

Checklist

• An approved Issue existed before implementation.
• The change stays within the Issue scope.
• No private key, signing, or mainnet submission behavior is added.
• No fixture or mock is described as real Moss or Monad evidence.
• No unverified protocol, token, or spender address is added.
• The original Capability and raw-evidence boundaries are preserved.
• Mandatory STOP conditions are not weakened.
• Documentation and manual verification evidence are current.
• All review conversations are resolved.