fix(features): remove SaMD-adjacent claims + clinical framing

[MP2EZ]

Summary

Compliance + crisis agents both flagged the /features page (currently live on being.fyi) for SaMD-adjacent language: `Auto-detects severe depression`, `Crisis support triggered automatically`, `Auto-triggered on PHQ-9 ≥20 or GAD-7 ≥15`. That's the textbook FDA definition of medical-device software ("identifies a clinical condition and takes action"), and it directly contradicts Being's wellness-app positioning per `regulatory-applicability.md` §FDA. Site went live yesterday; Apple/TestFlight reviewers may visit.

This PR rewrites the page to consumer-wellness register.

What's hot

Removed (SaMD vector):

• "Auto-detects severe depression / severe anxiety" → "Flags elevated scores (PHQ-9 ≥20) and surfaces crisis resources"
• "Crisis support triggered automatically" → "Always one tap from 988 and Crisis Text Line"
• "Integrated with crisis protocols" → same
• "Auto-triggered on PHQ-9 ≥20 or GAD-7 ≥15" → "Surfaced immediately when self-assessment scores are elevated"

Shifted (clinical → consumer wellness register):

• Section title: "Mental Health Self-Monitoring" → "Mood & Wellbeing Tracking"
• "Standardized self-assessments" / "mental health patterns" → "Research-based reflection tools" / "mood and wellbeing patterns"
• Card headers: "PHQ-9 (Depression)" → "PHQ-9 Mood Self-Assessment" (same for GAD-7)
• "monitoring depression symptoms" / "monitor anxiety symptoms" → "tracking mood patterns" / "tracking anxious thought and feeling patterns"
• Privacy: "mental health data" → "wellbeing data" (for internal consistency)
• "Military-grade encryption" → "AES-256 encryption" (drop empty marketing, keep concrete claim)
• Hero: "modern mental health science" → "modern wellbeing research"
• CTA: "evidence-based self-monitoring tools" → "research-based self-reflection tools"

Safety additions:

• 988 callout now names both modes: "Call 988 or text HOME to 741741" (was only "one tap to connect" — only-call framing flagged by crisis agent)
• 988 callout restyled from solid `bg-info` (bright blue + white text) to crisis token family (`bg-crisis-bg` + `text-crisis-text` + `border-crisis-border`) — muted, on-brand, consistent with footer crisis box treatment
• "24/7 Crisis Support" → "24/7 Crisis Resource Access" (Being surfaces resources; doesn't itself provide support — crisis-agent precision note)

Removed from rewrite by agent re-review:

• First rewrite added "scores remain comparable to those you might see from a healthcare provider" as a justification for using standard PHQ-9 wording. Both compliance and crisis agents independently flagged this as a NEW SaMD-adjacent claim ("implies Being is part of a care pathway"). Now reads: "self-reported scores stay consistent, letting you track your own patterns."

What this PR does NOT change

• The five Stoic-philosophy + Daily Check-Ins sections — already in wellness register
• The Privacy & Security section's substantive claims (just word-level swaps)
• Page layout, structure, or design system tokens (one styling change: 988 callout box)

Out of scope — needs app-team raise

The website now says what should be true. App-team needs to verify:

• Does the app actually surface crisis resources when PHQ-9 ≥20 or GAD-7 ≥15? (If no → FTC §5 deceptive claim)
• Does the app handle PHQ-9 item 9 ≥1 independently of total score? (Real safety gap: total-only thresholds miss self-harm ideation at lower totals per crisis agent)
• Is "Crisis button always visible in app" literally true (no hidden in modals / onboarding)?
• Is "Less than 3 seconds from any screen to 988" literally true?

Verification

• `npm run lint` — clean
• `npm test` — 74 tests pass
• `npm run build` — clean, all routes generated
• Chrome DevTools on local prod build:
  • "Auto-detects" / "Auto-triggered" / "triggered automatically" / "Integrated with crisis protocols" — ALL absent ✓
  • "Mental Health Self-Monitoring" / "Military-grade" / "healthcare provider" — ALL absent ✓
  • "Flags elevated scores (PHQ-9 ≥20)" / "(GAD-7 ≥15)" — present ✓
  • "988" + "741741" — both present in body ✓
  • 988 callout uses `bg-crisis-bg` not `bg-info` ✓
• Compliance agent re-review post-rewrite: "fully compliant with the wellness-app framing required by regulatory-applicability.md" (after the healthcare-provider line fix)
• Crisis agent re-review post-rewrite: "materially better than 'triggered automatically' — passes" (after the healthcare-provider + section title fixes)

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