Add standalone NeroVision production system scaffold

[NeroAgent]

Related Issue

Issue: #XXXX

Description

Adds a self-contained standalone/nerovision-production-system project that implements a localhost-only Android + Termux on-device assistant stack.

Highlights:

• Android manifest and Gradle scaffolding for accessibility, overlay, media projection, audio capture, bridge, and watchdog services
• Kotlin services with structured JSON logging, null-safe service registry access, before/after UI verification, versioned state snapshots, and localhost-only socket transport
• Canvas-based procedural avatar asset for the overlay service
• Termux Python runtime with structured logging, JSON sanitization, versioned snapshots, safe localhost clients, retry/backoff, and service supervision
• Persistent threaded vision, voice, and operator services with llama.cpp integration hooks, Whisper STT hooks, vector memory, and deterministic task execution
• Setup, startup, healthcheck scripts, README, and ignore rules for Termux deployment and validation hygiene

Test Procedure

Validated in the cloud workspace with:

• python3 -m compileall standalone/nerovision-production-system/termux
• Python service startup sanity check that instantiated and started the vision, voice, and operator services, verified they bound to 127.0.0.1:8767-8769, and then stopped cleanly
• JSON cleaner functional check using an LLM-style fenced response prefixed with Sure! Here's your JSON:
• Localhost protocol sanity check using LocalJsonSocketClient against the voice service health endpoint

Android code was reviewed for manifest wiring and null-safe service interactions, but not built in this environment because an Android SDK/Gradle wrapper is not available in the workspace.

Type of Change

• 🐛 Bug fix (non-breaking change which fixes an issue)
• ✨ New feature (non-breaking change which adds functionality)
• 💥 Breaking change (fix or feature that would cause existing functionality to not work as expected)
• ♻️ Refactor Changes
• 💅 Cosmetic Changes
• 📚 Documentation update
• 🏃 Workflow Changes

Pre-flight Checklist

• Changes are limited to a single feature, bugfix or chore (split larger changes into separate PRs)
• Tests are passing (npm test) and code is formatted and linted (npm run format && npm run lint)
• I have created a changeset using npm run changeset (required for user-facing changes)
• I have reviewed contributor guidelines

Screenshots

Not applicable for this standalone scaffold.

Additional Notes

This project is intentionally isolated from the existing extension codebase under standalone/.