Fix validated forecast, SEC, storage, and money bugs

[mattfaltyn]

Summary

• Bound Student-t EWMA simulated terminal prices to 0.01–100× spot and bump its model version so previous evidence is not displayed as current.
• Parse Sept. SEC earnings dates and dotted a.m./p.m. event times while keeping later-sentence timestamps out of event evidence.
• Keep theme and table density usable when browser storage reads or writes fail.
• Format accepted safe-integer cent values exactly, including negative totals.

Regression evidence

• Each reported failure reproduced with a failing regression before its fix. Adversarial review found and reproduced two additional edge cases, now covered: storage reads working while writes fail, and an unrelated time in the next SEC sentence.
• UV_CACHE_DIR=/tmp/hyperoptions-uv-cache scripts/verify-fast: 440 backend and 156 frontend tests passed.
• UV_CACHE_DIR=/tmp/hyperoptions-uv-cache NPM_CONFIG_CACHE=/tmp/hyperoptions-npm-cache scripts/verify: Ruff, 440 backend tests, npm audit (0 vulnerabilities), 156 frontend tests, lint, API generation check, build, and 30 Chromium tests passed.
• Independent R2 review: PASS after both review findings were fixed.

Limits

Student-t's bound changes its distribution. The identified frozen HSDT outlier no longer dominates CRPS, but full-cohort calibration and ranking were not rerun; the earlier historical comparison applies to the previous model version.

Pad: WORK-117, WORK-118, WORK-119, WORK-120, WORK-121.