v0.16.0

What's Changed

• feat(signup): reduce friction on registration flow by @tuvshinjargal in #285
• feat(api): expose chat agent via v2/chat for mobile clients by @tuvshinjargal in #286
• feat(health): surface full nutrient panel and fix dietary unit conversions by @tuvshinjargal in #287
• feat(ai): delegate chat tools to nutrition/health/fitness specialist sub-agents by @tuvshinjargal in #288
• refactor(ai): standardize agent and tool naming by @tuvshinjargal in #289
• refactor(ai): tighten orchestrator routing signals + add routing observability by @tuvshinjargal in #290
• Redesign AI Nutritionist blog section by @tuvshinjargal in #291
• Update sitemap blog page dates by @tuvshinjargal in #292
• Mobile native auth foundation: v2/auth endpoints, device registration, consent by @tuvshinjargal in #293
• Drop chat agent modes by @tuvshinjargal in #294

Full Changelog: v0.15.0...v0.16.0