Add instructor authority section to landing page

[projectamazonph]

Problem

The stitch reference samples include a "Principal Instructor" block with Ryan's photo, bio, and credentials:

• 6+ Years Active Duty
• 120+ Brands Managed
• Bio text about starting as a VA managing Php5k budgets in 2018

The live landing page has no instructor section. Trust is essential for a career-training purchase. Ryan's credentials (Php50M+ ad spend managed, 200+ client accounts since 2014) are compelling and specific.

Implementation

Add a section between the "Coming Soon" tools and the pricing preview. Two-column layout on desktop (photo left, text right), stacked on mobile.

Reference: stitch_amph_v2/stitch_amph_v2/landing_page/code.html lines 409-436.

Content

• Eyebrow: Principal Instructor
• Headline: Built by someone who's done the work.
• Bio: Ryan's background as a VA who grew into managing Php500M+ in cumulative ad spend. AMPH Academy is the field manual he wished he had.
• Stats: 6+ Years, 200+ Brands, Php500M+ Managed
• Photo: Professional headshot (grayscale, per stitch reference)

Specs

• Background: var(--surface-2) or white with border
• Photo: grayscale filter, 192px x 192px, var(--border) border
• Stats: mono font, accent color
• Section padding: var(--space-12) vertical

Severity: Required — trust-building for purchase decision