Improve ProfitCtl website demo, branding, and sharing

[hudsonaikins]

ProfitCtl now shows its real CLI through a repeating browser terminal using a fictional product scenario. Visitors can see increased usage miss a margin target, compare a cheaper route, and inspect the inputs. The homepage and documentation follow the browser’s light or dark preference.

• Run validate, simulate, and compare through the Go CLI compiled to WebAssembly, using read-only fictional scenarios. The separate calculator remains a simplified illustration. Neither uses live provider prices.
• Keep product navigation focused and retain setup instructions, documentation, and GitHub links.
• Use https://profitctl.com for canonical URLs, sitemap, structured metadata, and sharing assets. Preserve attribution to IntelIP and Hudson Aikins.
• Adopt the user-approved bold-plus calculator mark in the header/footer, SVG/PNG/ICO browser icons, and Apple touch icon. Add a 1200 × 630 JPEG sharing card for services such as iMessage. Version icon links and the sharing image URL to refresh caches.

Validation on 92c72d9:

• Website build, CLI WebAssembly checks, calculator checks, SEO checks, and type checks pass.
• Exact-commit product validation passes all six required validators, with zero provider spend. All six required GitHub checks pass on this commit; evidence is uploaded by CI.
• Home and documentation pass browser checks at 320, 390, and 1440 CSS pixels in light and dark themes. Header/footer icons load; favicon and sharing metadata select the approved assets; the JPEG is 1200 × 630.
• No unresolved review threads.

Published at https://profitctl.com through production deployment e4f3ff65-b3dd-4acb-a2c9-3c013b2ddc36. Cloudflare confirms the exact commit. Live home/docs metadata and SVG, PNG, ICO, Apple touch, application icon, and sharing JPEG match the tested build. Automatic Git deployment remains separate from the successful direct upload.

Actual iMessage rendering and Google search indexing were not tested. Existing cached previews may take time to refresh. PR merge requires maintainer approval.

[makeplane]

Linked to Plane Work Item(s)

References

• (PCTL-17) Adopt exact-head product validation gate

This comment was auto-generated by Plane