feat(spatius): forward avatar session extra params, update spatius to 1.0.5

[3DRX]

Summary

• Bump the spatius[opus] dependency from 1.0.4 to 1.0.5 and add extra_params to the extension config, forwarding it to the Spatius SDK's new_avatar_session so callers can pass server-side session options (e.g. server_post_process) through the extension. The dict is copied in update_params() and again at session creation to avoid aliasing caller/config state.
• extra_params is exposed as an open object in the manifest property schema (params.extra_params) and defaults to {} in property.json.
• Bump extension version to 0.2.5.

Region default change

spatius 1.0.5 changes the default ingress region behavior: when no region is specified, it is no longer fixed to us-west — the SDK resolves the region automatically via the Spatius global bootstrap API (automatic regional scheduling). If bootstrap resolution fails, it falls back to the last cached region or us-west.

The extension only passes region to the SDK when explicitly configured, so the new auto behavior is picked up with no additional code; the config log now reports region=(auto) when unset. Set params.region (e.g. us-west) to pin a concrete region.

Tests

• Added tests/test_config.py covering the extra_params copy semantics and empty-default behavior.

Example

{
  "params": {
    "spatius_api_key": "${env:SPATIUS_API_KEY|}",
    "spatius_app_id": "${env:SPATIUS_APP_ID|}",
    "spatius_avatar_id": "...",
    "extra_params": {
      "server_post_process": "false"
    }
  }
}