docs: sync README features with 1.7.0–1.8.1 reality

[rainxchzed]

README's Features section had drifted across two release cycles. Audited against gh release view for 1.7.0/1.8.0/1.8.1 and against the actual codebase, then rewrote.

What changed

Features section additions (matching what we actually shipped):

• Library Imports, Download Mirror System, APK Inspect, sectioned Apps screen.
• What's new sheet, Announcements feed (1.8.1 path).
• Sui silent install alongside Shizuku.
• Personal Access Token sign-in.
• In-app feedback under Tweaks → About.
• Pre-release channel chip + "switch to stable" rollback.
• Backend at api.github-store.org for auth proxy / curated discovery / announcements feed.

Fixes:

• Theme picker list — README claimed Ocean, Mint, Rose, Purple, Indigo, Peach, Dynamic. Actual AppTheme.kt enum: Dynamic, Ocean, Purple, Forest, Slate, Amber. Mint/Rose/Indigo/Peach do not exist.
• .pkg.tar.zst added to supported Linux installer list (Arch / Manjaro / CachyOS).
• Pros section now mentions Sui alongside Shizuku.
• Two stale Discord vanity URLs (NBW4zeFcG6, x9Cvh2Z9qS) collapsed to canonical discord.github-store.org.
• Business-inquiry email fixed from typo'd rainxch.dev@email.com to hello@github-store.org (matches CONTRIBUTING.md and CODE_OF_CONDUCT.md).
• License copyright bumped to 2025-2026.

What's deliberately NOT in this PR

• Localized README files (docs/README-*.md × 11 locales) — same drift but translation cost is real. Better to leave a "translations needed" issue for the community than ship machine-translated drift across 11 files in a single PR. Ping me if you want a follow-up that does it anyway.
• Wiki link — verified live (HTTP 200), kept as-is.
• Discord embed code in the invidget badge — kept the existing real invite (NBW4zeFcG6); the vanity URL hides the real code, and changing the badge would break the embed without server-side info.

Test plan

• Render README on GitHub web and confirm sections look correct.
• Confirm theme list matches what users actually see in Tweaks → Appearance.
• Confirm both Discord links resolve to the same server.

Summary by CodeRabbit

• Documentation
  • README updated with Smart discovery details, APK Inspect viewer, and expanded download mirror system with SHA-256 integrity checks, self-hosting, and slow-download suggestions.
  • Enhanced Rich details, App management, deep links, import/scan flows, pre-release toggle/rollback, and update/auto-update descriptions.
  • Added backend-routed device OAuth and personal access token sign-in, persistent “What’s new” history, anonymous announcements, theme options, Linux extension note, contact links, and license year update.

[coderabbitai]

Caution

Review failed

The pull request is closed.

ℹ️ Recent review info

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Reviewing files that changed from the base of the PR and between eba5631 and 034384b.

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• README.md

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Walkthrough

This PR updates README.md feature documentation: documents a curated “Smart discovery” layer backed by the GitHub Store backend with GitHub passthrough fallback; adds APK Inspect and a download mirror system with SHA‑256 verification; expands Rich details, App management, Authentication, Cross‑version communication, Tweaks, Network & performance, FAQ, contact links, and updates copyright years.

Changes

README Feature & Messaging Update

Layer / File(s)	Summary
Discovery & Feature Summary README.md (lines ~130–152)	Documents curated “Smart discovery” backed by GitHub Store backend with live GitHub passthrough; adds APK Inspect and download mirror system (multi-source fetching, SHA‑256 verification, backend-updatable mirrors, self-hosted mirror support, opt-in slow-download suggestion).
Rich Details & Deep Linking README.md (lines ~156–163)	Adds README translation rendering, pre-release channel toggling with “switch to stable” rollback, merged “what’s changed” behavior, stronger deep-linking and developer profile navigation notes.
App Management & Install Flow README.md (lines ~165–173, ~261–263)	Describes Library Imports (on-device GitHub app recognition & review wizard), Link apps flow, Shizuku/Sui silent install for hands-free updates, periodic background update checks and auto-update behavior.
Cross-version Communication & Announcements README.md (lines ~180–183)	Adds first-launch “What’s new” sheet with persistent history and anonymous backend Announcements feed with local dismissal/read state.
Authentication & Backend Routing README.md (lines ~184–187)	Documents backend-routed GitHub OAuth device-flow with infrastructure fallback and Personal Access Token sign-in option with local validation.
Tweaks, Network & Self-hosting Notes README.md (lines ~188–203)	Updates settings/appearance/network/install/update/storage/send-feedback descriptions; documents anonymous backend at api.github-store.org and self-hosting note.
FAQ, Contact & Community Links README.md (lines ~226–229, ~318–324, ~406–407, ~436–438)	Adds .pkg.tar.zst to supported Linux extensions; replaces Discord invite links with https://discord.github-store.org; updates business inquiries email to hello@github-store.org.
Metadata / License README.md (lines ~496–498)	Bumps copyright header to Copyright 2025-2026.

Sequence Diagram(s)

(omitted — changes are documentation-only and do not introduce a multi-component control flow)

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~10 minutes

Possibly related PRs

• docs: sync README features with 1.7.0–1.8.1 reality #500 — Nearly identical README feature-documentation updates (APK Inspect, mirrors, theme list, contact link and copyright bumps).
• Readme polish #282 — Overlapping README edits touching discovery, app management, and rich details sections.
• Revise README layout and add developer introduction #443 — Related README content/structure changes and badge/layout adjustments.

Poem

🐰 I hopped through lines and polished text,
Mirrors, APK views, and backend specs,
Discord links redirected, years extended,
README sings — the doc is mended! 🥕

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.
Title check	✅ Passed	The title 'docs: sync README features with 1.7.0–1.8.1 reality' directly and clearly describes the main change: updating README documentation to reflect actual features shipped in app versions 1.7.0 through 1.8.1.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch docs/readme-feature-sync

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[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against the current code and only fix it if needed.

Inline comments:
In `@README.md`:
- Around line 149-151: Replace the two nonstandard spellings in the README
bullets: change "Curated community mirror list, updateable from the backend
without an app release." to use "updatable" instead of "updateable", and change
"Auto-suggest sheet after sustained slow downloads — opt in with one tap,
dismissable, never nags." to use "dismissible" instead of "dismissable"; update
the exact strings in the README so other text remains unchanged.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

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Configuration used: Path: .coderabbit.yaml

Review profile: CHILL

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Run ID: 906608da-263d-4058-a18a-748ac0591321

📥 Commits

Reviewing files that changed from the base of the PR and between 3459f1f and eba5631.

📒 Files selected for processing (1)

• README.md