feat: implement Ansible-based process architecture for RunPod

Major architecture overhaul to address RunPod Docker limitations:

Core Infrastructure:
- Add base_service.py: Abstract base class for all AI services
- Add service_manager.py: Process lifecycle management
- Add core/requirements.txt: Core dependencies

Model Services (Standalone Python):
- Add models/vllm/server.py: Qwen 2.5 7B text generation
- Add models/flux/server.py: Flux.1 Schnell image generation
- Add models/musicgen/server.py: MusicGen Medium music generation
- Each service inherits from GPUService base class
- OpenAI-compatible APIs
- Standalone execution support

Ansible Deployment:
- Add playbook.yml: Comprehensive deployment automation
- Add ansible.cfg: Ansible configuration
- Add inventory.yml: Localhost inventory
- Tags: base, python, dependencies, models, tailscale, validate, cleanup

Scripts:
- Add scripts/install.sh: Full installation wrapper
- Add scripts/download-models.sh: Model download wrapper
- Add scripts/start-all.sh: Start orchestrator
- Add scripts/stop-all.sh: Stop all services

Documentation:
- Update ARCHITECTURE.md: Document distributed VPS+GPU architecture

Benefits:
- No Docker: Avoids RunPod CAP_SYS_ADMIN limitations
- Fully reproducible via Ansible
- Extensible: Add models in 3 steps
- Direct Python execution (no container overhead)

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

ansible.cfg

@@ -0,0 +1,33 @@
+[defaults]
+# Ansible configuration for RunPod deployment
+
+# Inventory
+inventory = inventory.yml
+
+# Disable host key checking (RunPod instances may change)
+host_key_checking = False
+
+# Display settings
+stdout_callback = yaml
+bin_ansible_callbacks = True
+
+# Performance
+forks = 5
+gathering = smart
+fact_caching = jsonfile
+fact_caching_connection = /tmp/ansible_facts
+fact_caching_timeout = 86400
+
+# Logging
+log_path = /tmp/ansible-runpod.log
+
+# Privilege escalation
+become_method = sudo
+become_ask_pass = False
+
+# SSH settings
+timeout = 30
+transport = local
+
+# Retry files
+retry_files_enabled = False