Weekly update + QTPS value

[dewabisma]

Summary

• Add new 08-19-2026 weekly update
• Update QTPS value and refactor to make value as constant so easy to adjust.

[n13]

Reviewer model: GPT Sol

APPROVE — no blocking findings at 394ef7d2.

Reviewed the complete 5fb4ce4...394ef7d2 diff. The shared QTPS constant is applied consistently across the home page, wallet page, ticker, and all nine locales; every localized weekly post and both new WebP assets render in the static output.

Validation:

• Frozen-lock Bun dependency install: passed with browser download skipped locally.
• Astro production build with a localhost site URL: passed; all nine localized blog routes were generated.
• SEO metadata check, JSON parsing and translation-structure checks, rendered QTPS/post checks, image validation, and git diff --check: passed.
• The repository-wide Prettier check remains red on multiple files already unformatted at the base, plus a non-blocking formatting delta in SolutionSection.astro. No GitHub checks are reported for this branch.

No blocking correctness, compatibility, or content findings.