Sync wiki from repo: v4.4.0 billing offers, add Subscription Offers page
Adds the v4.4.0 billing offer APIs and brings the wiki back in sync with the
repo, which had drifted since v3.5.9.
New:
- Subscription Offers page — buying a specific offer, offer lookup by
id/base plan/tag, BillingPeriod price normalization, trial eligibility,
one-time product offers
Updated:
- Billing Integration — PBL v9, v4.4.0 deps, offer purchase, product-details
diagnostics, obfuscated ids / personalized-offer disclosure
- Subscriptions — account hold now detected client-side (ON_HOLD revokes
isSubscriptionActive), payment recovery, pending plan changes
- App Open Ads, Banner Ads, Configuration, Jetpack Compose — 4.3.x content
that was never published
Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
Sync wiki from repo: billing v3.5.9 updates, add Waterfall + Yandex pages
- Billing-Integration: v3.5.9, setDebugMode, automatic-acknowledgment note,
Product Metadata (v3.4.1+) and Structured Offers (v3.5.7+) sections
- Home / Subscriptions / _Sidebar: bring in line with repo wiki/
- Add Multi-Provider-Waterfall and Yandex-Integration pages
Add billing documentation for v2.9.0
New pages:
- Billing-Integration.md: Quick start guide
- Purchase-Categories.md: CONSUMABLE, FEATURE_UNLOCK, LIFETIME_PREMIUM, REMOVE_ADS
- Consumable-Products.md: Manual consumption flow
- Subscriptions.md: Subscription lifecycle states
- Subscription-Upgrades.md: Upgrade/downgrade with proration modes
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