Billing Portal: Phase 1 UI

[overheadhunter]

Add UI for phase 1 of Hub self-service billing portal

sequenceDiagram
    participant Hub as Cryptomator Hub
    participant Web as Billing Page
    participant API as API<br/>(api.cryptomator.org)
    actor Mail as User's inbox

    Hub-)Web: redirect /hub/billing#35;?hub_id=42&return_url=xyz
    activate Web

    %% PHASE 1
    note over Hub,Mail: PHASE 1
    Web->>+API: GET /billing/customers/challenge
    API-->>-Web: challenge
    activate Web
    Web->>Web: Solve Challenge
    deactivate Web

    Web->>+API: GET /billing/customers/by-hub-id/42?captcha=...
    alt 404
        API-->>Web: 404: hub_id not found
        activate Web
        Web->>Web: Enter Email Address
        deactivate Web
    else 200
        API-->>-Web: 200: h***r@e***e.com
    end

    Web->>+API: GET /billing/session/challenge
    API-->>-Web: challenge
    activate Web
    Web->>Web: Solve Challenge
    deactivate Web
    Web->>+API: POST /billing/session<br/>{hub_id=42, return_url=..., fragment_or_query=..., email?=...}
    API->>API: Create Session
    API--)+Mail: email with link
    API-->>-Web: 204
    deactivate Web

    Mail->>-Web: open /hub/billing?session=1337
    activate Web
    Web->>+API: GET /billing/session/1337
    alt 200
        API-->>-Web: {return_url, fragement_or_query, ...}
    else 404
        note right of Web: Link Expired
    end

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ℹ️ Review info

⚙️ Run configuration

Configuration used: Organization UI

Review profile: CHILL

Plan: Pro

Run ID: db24f5c6-de66-49d0-85b5-42b7e4d06397

📥 Commits

Reviewing files that changed from the base of the PR and between fd42ebe and 66deb9d.

📒 Files selected for processing (4)

• assets/js/hubsubscription.js
• i18n/de.yaml
• i18n/en.yaml
• layouts/hub-billing/single.html

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch feature/store-migration-phase1

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