Store readiness: in-app account deletion, privacy policy, terms, listing copy

Closes the remaining store-compliance gaps before App Store / Play
submission:

- Account deletion (App Store guideline 5.1.1): DELETE /me removes the
  user row (usage cascades). The app exposes it through one quiet
  'Account' caption link under the chat, visible only when signed in,
  driving two native dialogs (Sign out / Delete account with a
  destructive confirm) — no new views, no menus, minimalism intact.
  Deletion signs out and resets the app; copy notes that store
  subscriptions are cancelled in App Store / Play settings.
- docs/store/privacy-policy.md: the complete data inventory (matching
  the actual schema), transient OpenAI processing with no training, no
  profiling or ads, GDPR legal bases and rights, in-app erasure.
- docs/store/terms-of-service.md: not-therapy positioning with crisis
  guidance, AI-generated-content caveat, 18+ eligibility,
  auto-renewal/cancellation terms, liability, Swedish governing law.
- docs/store/listing.md: App Store and Play copy written to the
  honest-claims rule (subtitle 'Think Beyond Thought', keywords,
  descriptions), plus App Privacy and Data safety questionnaire
  mappings.
- LAUNCH.md updated: host the policy/terms, set store URLs, use the
  prepared listing copy.
- Tests: 30 passing (adds DELETE /me coverage).

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_0118DaxZR36RpnY524vRqx3z

docs/store/listing.md

@@ -0,0 +1,74 @@
+# Store listing copy
+
+All copy follows the honest-claims rule: neurosemantics/NLP as inspiration
+and models for reflection — never "scientifically proven", never promised
+results. Tone: calm, clear, no hype.
+
+## App Store (iOS)
+
+- **Name:** Semantika
+- **Subtitle** (≤30 chars): `Think Beyond Thought`
+- **Category:** Lifestyle (primary), Education (secondary)
+- **Age rating:** 17+ (unrestricted web-like AI content; matches 18+ terms)
+- **Keywords** (≤100 chars):
+  `reflection,thinking,clarity,communication,meaning,mindset,self insight,NLP,decision,conversation`
+- **Promotional text:**
+  A quiet conversation partner for your thinking. Explore how you create
+  meaning — one structured conversation at a time.
+- **Description:**
+
+  Semantika is a minimalist AI conversation partner for reflection,
+  inspired by neurosemantic principles.
+
+  Start a conversation about what is on your mind — a difficult
+  conversation ahead, a decision you keep postponing, a pattern you keep
+  repeating. Semantika listens, asks considered follow-up questions, and
+  helps you see how you interpret your situation. When the picture is
+  clear, it offers a structured analysis, concrete recommendations, and
+  practical exercises.
+
+  No feeds. No streaks. No noise. One conversation at a time.
+
+  — Begin immediately: no registration before your first question
+  — Conversations are never stored, and never used for training
+  — A calm, structured method: acknowledge, explore, lift, challenge
+  — Premium: full analyses, personalised action plans, unlimited dialogue
+
+  Semantika is not therapy and does not replace professional care. Its
+  models are offered as perspectives for reflection, inspired by
+  neurosemantics and NLP.
+
+  Subscriptions ($5.99/month or $49.99/year) renew automatically and can
+  be cancelled anytime in your App Store settings.
+  Privacy policy and terms: [PRIVACY_POLICY_URL] · [TERMS_URL]
+
+## Google Play (Android)
+
+- **App name:** Semantika
+- **Short description** (≤80 chars):
+  `A quiet AI conversation partner for reflection, clarity and better decisions.`
+- **Full description:** reuse the App Store description above.
+- **Category:** Lifestyle
+
+## App Privacy (Apple questionnaire mapping)
+
+- **Contact info → Email address:** collected, linked to identity, for app
+  functionality only. No tracking.
+- **Identifiers → User ID:** account id / device id, app functionality only.
+- **Purchases:** subscription status, app functionality only.
+- **User content (chat):** processed but **not collected/stored**; declare
+  as not collected (transient processing), and describe in the privacy
+  policy.
+- **Tracking:** none. No ads, no data sold or shared for advertising.
+
+## Data safety (Google Play form)
+
+- Collected: email, user ids, purchase history (subscription status).
+- Shared: none. Encrypted in transit: yes. Deletable: yes, in-app.
+- Chat content: processed ephemerally, not stored.
+
+## Required URLs
+
+Host `privacy-policy.md` and `terms-of-service.md` on a public URL (GitHub
+Pages is enough for the beta) and set them in both store consoles. Replace
+the [PLACEHOLDERS] in both documents first.