[codex] Update personal site for June 2026

[untilhamza]

What changed

• Updated the personal site homepage, CV data, and metadata for Hamza's June 2026 positioning: HoverNotes founder, Quest CTO/co-founder, xAI Human Data contract specialist, and Slid Lead AI Engineer.
• Added current project pages for Quest and xAI Human Data, refreshed the HoverNotes project page, and cleaned stale claims/titles in older project pages.
• Added June 5, 2026 resume markdown/html drafts and PDF assets for technical/founder resume variants.
• Added career_evidence/ and AGENTS.md so future site/resume edits have a grounded source of truth.
• Added the live Quest URL: https://questheaven.com.
• Cleaned Jekyll/Sass build warnings by modernizing a few Sass calls, silencing legacy import warnings at config level, removing stale minifier config, and adding the explicit ostruct dependency.

Why

The existing public site and resume were behind Hamza's current work. This update centers the actual 2026 profile: founder-led product engineering, production AI systems, Quest platform leadership, HoverNotes traction, and high-signal model-evaluation contract work.

Validation

• RBENV_VERSION=3.4.5 /opt/homebrew/bin/rbenv exec ruby -e "require 'yaml'; YAML.load_file('career_evidence/index.yml'); YAML.load_file('_data/cv.yml'); YAML.load_file('_config.yml'); puts 'yaml ok'"
• RBENV_VERSION=3.4.5 /opt/homebrew/bin/rbenv exec bundle exec jekyll build
• Build warning scan for warning|DEPRECATION|Filtering out legacy|Could not|Error returned clean.
• Privacy scan for xAI/internal onboarding terms and absolute local paths returned clean.