Fix acquisition tracking, metadata, and page load

[abrichr]

Summary

• create a stable sales-task record for every workflow qualification submission
• remove duplicate page metadata and refresh Desktop 0.15.0 public version claims
• cache versioned reference media, load only the active and next dashboard captures, and remove client-side repository polling
• remove pure presentation-copy assertions while retaining legal, privacy, and accessibility contracts
• preserve public/hero.mp4 unchanged

Verification

• npm test: 183 passed
• npm run build: passed
• rendered index, qualify, execute, and paper pages each contain one og:title, og:description, and og:url
• rendered homepage contains two dashboard-slide images

[netlify]

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