Optimize Compose app list rendering and incremental loading

[Dev97633]

Motivation

• Reduce micro-stutter and GC churn when loading and displaying the app list by avoiding repeated list copying and expensive per-frame draw work.
• Make incremental chunked loading, filtering and per-item updates much cheaper so the UI can show first content quickly and remain smooth during scrolls and updates.

Description

• Replaced var allAppData by remember { mutableStateOf<List<AppData>>(emptyList()) } with val allAppData = remember { mutableStateListOf<AppData>() } and added a lightweight appDataVersion (mutableIntStateOf) to signal meaningful item changes.
• Changed refresh logic to allAppData.clear() + allAppData.addAll(chunk) instead of allAppData = allAppData + chunk to avoid list copying and broad recompositions.
• Switched single-item updates to in-place indexed replacement (allAppData[targetIndex] = ...) and bump appDataVersion to allow targeted downstream updates.
• Replaced derivedStateOf filtering keyed on the whole list with a produceState that is keyed by query, filters, allAppData.size, and appDataVersion to debounce / reduce filter recomputation.
• Removed the per-item drawBehind custom line drawing and added a HorizontalDivider in the item layout to avoid per-frame draw callbacks during scroll.
• Reduced decoded icon bitmap size from 80x80 to 48x48 and changed the loading path to chunk-first then sort-per-chunk (.chunked(30) + .sortedBy { it.appName }) to improve first-paint latency and reduce upfront sorting cost.

Testing

• Attempted to compile Kotlin with ./gradlew :app:compileDebugKotlin, which failed in this environment with /bin/bash: line 1: ./gradlew: Permission denied and environment JAVACMD issues.
• Attempted bash ./gradlew :app:compileDebugKotlin, which also failed due to the environment's missing Java runtime (exec: : not found).
• No automated unit or instrumentation tests were executed successfully in this environment; code changes were validated via static inspection and local edit/run commands only.

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[chatgpt-codex-connector]

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[chatgpt-codex-connector]

Preserve global app sorting when loading in chunks

Chunking packages before sorting only orders apps within each 30-item block, so the final list order now depends on the package manager’s enumeration order instead of a global app-name sort. On devices with more than one chunk, this makes the main list and filteredAppData.take(10) suggestions non-alphabetical and unstable across refreshes, which is a user-visible regression from the previous globally sorted behavior.

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