PWA + UI overhaul: sidebar friends, messaging features, service worker and manifest

[reodesureodesu]

Motivation

• Modernize the single-page app to behave like a PWA and provide a richer chat UX with friend management, custom stamps, media, and offline/retry support.
• Consolidate and extend message handling and UI state to support replies, edits, deletions, read receipts, and 1:1 conversations.

Description

• Added PWA assets and registration: new icons/app-icon.svg, manifest.json, and sw.js to enable installability and offline caching.
• Large index.html rewrite that refactors UI into a ui object, enhances layout/CSS (responsive app sizing, dark mode), adds a sidebar for friend controls, stamp bar, notifications panel, mini-game, and many new controls (profile/background upload, font size slider, screen presets).
• Reworked client logic and Firebase usage: updated imports to include doc, setDoc, updateDoc, deleteDoc, arrayUnion, getDocs, where, limit; added message lifecycle helpers (postMessage, enqueueFailed, retryFailedQueue, renderMessages, renderFriends, renderStampBar), image compression via compressImageFile, audio recording via MediaRecorder, and read-receipt handling.
• Implemented client-side features: local failedQueue persistence, custom stamps upload, reply/edit/delete messages, friend requests by email/name, URL invite handling, install prompt handling, and basic AI call integration for suggested replies.

Testing

• No automated tests were added or executed for this change.

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
line	Ready	Preview, Comment	Mar 3, 2026 10:59am

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