v0.2.0 — multi-language, bring-your-own-AI, any CalDAV, mobile parity

Everything merged since v0.1.0.
No database migrations and no breaking changes — upgrading is a pull and a rebuild.

🌍 Otter speaks six languages

The booking page and Otter's UI are now localised in English, Spanish, French,
German, Portuguese and Italian. (#80, #92)

• Locale resolves stored preference → Accept-Language → default, and there's a
  language picker in Settings → Preferences on both web and mobile. (#86)
• Resolved on the server, so there's no hydration flash, and the marketing site stays
  statically rendered.
• Scope: the booking page and Otter's chrome are translated; the rest of the dashboard
  is still English.

🤖 Bring your own AI provider

Otter is no longer tied to Claude. Set AI_PROVIDER and point it at whatever you run. (#83, #85)

• anthropic (default) or openai — where openai covers any OpenAI-compatible
  endpoint: OpenAI, Groq, OpenRouter, Together, Azure OpenAI, or a local
  Ollama / LM Studio, via OPENAI_BASE_URL.
• Every AI feature works on either provider, including the streaming conversational
  command bar (ported to OpenAI function-calling, not just the single-shot commands).
• Models are overridable: ANTHROPIC_MODEL_DEEP/FAST, OPENAI_MODEL_DEEP/FAST.
• Defaults to anthropic, so existing deployments need no changes.

📅 Connect any CalDAV server, not just iCloud

Apple iCloud was the only CalDAV option; now it's any server. (#82)

• Presets for Fastmail and mailbox.org, plus "Other CalDAV server" with a custom
  URL — Nextcloud, Radicale, self-hosted, whatever you run.
• Usernames no longer have to be email addresses (Nextcloud/Radicale use plain usernames).
• Security: a user-supplied server URL is now DNS-resolved and rejected if it points
  at loopback, link-local, or private ranges — a regex check wasn't enough once arbitrary
  URLs were allowed.

📱 The mobile app caught up with the web

Seven features that previously existed only on the web now have native screens. (#87)

• CRM connections, Billing/plan, Payouts (Connect balance + withdraw),
  Packages & credits.
• Team detail — member roster with roles and round-robin weights, add/remove members,
  and collective rules.
• Group polls — list, create with candidate times, see the per-option tally, finalize.
• Routing forms — list, create, rename, activate/deactivate, delete.
• Cancelling or rescheduling now captures an optional reason, sent to attendees.

New REST endpoints (added because the web read this data server-side, so no JSON
existed — useful to any API consumer, not just the app):
GET /api/integrations/crm · GET /api/payments/status · GET /api/teams/{id} +
DELETE /api/teams/{id}/members/{memberId} · GET /api/polls[/{id}] ·
GET /api/routing[/{id}]

Still web-only on purpose: the deep routing rule-builder and poll option editor render
read-only on mobile.

🔔 Android push is configurable per deployment

Android notifications go through Firebase Cloud Messaging, which needs your Firebase
project — so it's now pluggable rather than absent. (#93)

• Drop a google-services.json into apps/mobile/, or point GOOGLE_SERVICES_JSON at
  one (an EAS file secret). If it's absent the app still builds and runs — only
  Android push stays off, so contributors aren't blocked.
• Full runbook in docs/INTEGRATIONS.md → Mobile push (Android / FCM).
• iOS push and the server side needed no changes; delivery already went through Expo.

🖥️ Website

• The interactive "Ask Otter" demo now sits directly below the hero instead of four
  sections down, and replays the reschedule example on scroll. (#94)

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Upgrade notes

• No migrations. No schema changes in this range.
• No config required. AI_PROVIDER defaults to anthropic; every new variable is
  optional and commented out in .env.example.
• Want a non-Claude provider? Set AI_PROVIDER=openai plus OPENAI_API_KEY (and
  OPENAI_BASE_URL for a self-hosted or third-party endpoint).
• Want Android push? Follow the FCM runbook — it needs your own Firebase project.

Full changelog: v0.1.0...v0.2.0