v6.2.0

Adds the optional Decidealot CLM provider to the AIGate stack.

- `DECIDEALOT_CLM_ENABLED=true` enables Decidealot CLM. With `DECIDEALOT=1` or `DECIDEALOT_CUDA=1` and `LLAMACPP_CUDA=1`, AIGate starts the CUDA llama.cpp profile and routes CLM embeddings through `local-llamacpp-cuda-qwen3-8b` on its internal LiteLLM network.
- The Decidealot CPU and CUDA services use `psyb0t/decidealot:v0.5.0`, which includes Laya, Von, and the optional CLM provider. Laya and Von remain enabled by default. CLM stays opt-in.

- The source-controlled Codex plugin metadata now reports the current AIGate release version.