Add dual-mode theme creation and quota widget

[Way-To-AGI]

Summary

• add Agent-direct and HTML-studio creation entry points backed by one compiler and runtime
• add shared local service status UI for the studio and theme library
• add an optional read-only Codex quota card with live primary/secondary window updates
• preserve collision handling, rollback, package safety, and native-mode behavior

Why

Theme creation previously centered on the HTML workflow and theme decorations were static. This adds a chat-only creation path while keeping the existing studio, and lets generated themes opt into a trusted dynamic quota view without embedding credentials or account values in theme packages.

Safety

The quota provider uses only the bundled official app-server read/update protocol. It does not expose credentials or credit balances to the renderer and does not call account mutation methods.

Validation

• node scripts/self-test.mjs
• node scripts/studio-protocol-test.mjs
• node scripts/theme-control-test.mjs
• node scripts/usage-provider-test.mjs
• node scripts/platform-runtime-test.mjs
• quick_validate.py .
• live read-only handshake against the bundled macOS codex app-server

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