feat(agentos): complete ordinary app lifecycle

[siwei-yuan]

Summary

• bound ordinary App View and Data Action runtimes to independent three-entry LRU pools, loaded on demand from PSRAM
• add destructive ordinary App uninstall through the existing AppSupervisor, removing Tool routes, schedules, runtimes, SQLite/data, credentials, native session state, releases, and Catalog entries
• add the Apps uninstall UI using existing Pi Design elements while keeping the resident Pi Agent System App protected
• add UART package ingress to the same review and Installer path used by HTTP; split one-time wireless provisioning, App install, and the optional development model bridge into focused CLIs
• persist standalone wireless model configuration in native NVS and remove the implicit UART Codex fallback
• make Files directory navigation read live workspace state so an uninstalled App disappears immediately
• update architecture, ESP32, Design System, build, install, and validation documentation

Validation

• cargo test --workspace — 35 passed
• bun test apps/_shared/text.test.ts — 3 passed
• cargo clippy --workspace --all-targets -- -D warnings
• cargo fmt --all -- --check
• Python UART CLI syntax parse
• git diff --check
• cargo xtask build esp32-p4

Physical ESP32-P4 acceptance

• booted from persisted wireless model configuration without a UART model bridge
• uploaded Exa over UART to the shared review screen without rebooting the running device
• installed, uninstalled, and cleanly reinstalled Exa
• verified UART close leaves the WCH serial bridge control lines idle and the display running
• verified uninstall removes Exa from Apps, Tool/runtime state, storage after restart, and an already-browsed Files/apps directory

A fresh provider call was not repeated in the final uninstall acceptance pass.