feat: add CommandCode provider plugin

[ousiaresearch]

What does this PR do?

Adds a first-class CommandCode provider plugin with two API-mode profiles (chat_completions and anthropic_messages) backed by 20+ models through a single API key. This removes the need to configure CommandCode as a YAML-only custom_provider — it is now a fully registered provider auto-discovered at startup and available in /model pickers and setup wizards.

Related Issue

None — new provider inclusion.

Type of Change

• ✨ New feature (non-breaking change that adds functionality)

Changes Made

• plugins/model-providers/commandcode/__init__.py — CommandCodeProfile (chat_completions, 20+ models) and CommandCodeAnthropicProfile (anthropic_messages, Claude models), both with fetch_models
• plugins/model-providers/commandcode/plugin.yaml — manifest
• agent/anthropic_adapter.py — recognize api.commandcode.ai as a Bearer-auth domain in _requires_bearer_auth() (+1 line)
• tests/plugins/model_providers/test_commandcode_profile.py — 28 unit tests
• tests/providers/test_plugin_discovery.py — bump profile count assertion 34→36

How to Test

1. Set COMMANDCODE_API_KEY in .env
2. Run ./venv/bin/python -m pytest tests/plugins/model_providers/test_commandcode_profile.py tests/providers/ -v
3. Confirm 171 tests pass (28 new, 0 regressions)
4. Verify provider appears in discovery: python -c "import providers; p = providers.get_provider_profile('commandcode'); print(p.name, p.api_mode)"

Checklist

Code

• I have read the Contributing Guide
• My commit messages follow Conventional Commits
• I searched for existing PRs to make sure this is not a duplicate
• My PR contains only changes related to this fix/feature
• I have run pytest tests/ and all tests pass
• I have added tests for my changes
• I have tested on my platform: macOS 26.3

Documentation & Housekeeping

• I have updated relevant documentation — N/A (provider profiles are self-documenting via registry metadata)
• I have updated cli-config.yaml.example — N/A
• I have updated CONTRIBUTING.md or AGENTS.md — N/A
• I have considered cross-platform impact — N/A (provider uses stdlib urllib, no platform-specific code)
• I have updated tool descriptions/schemas — N/A

[teknium1]

Thanks for the CommandCode provider-profile work. This is an automated hermes-sweeper review closing the in-tree placement under the standing third-party integration policy.

• The PR adds plugins/model-providers/commandcode/ and registers CommandCode profiles there (bf8e6e9fa369; plugins/model-providers/commandcode/__init__.py:84-158).
• Current maintainer policy says vendor/SaaS integrations must ship as standalone plugin repositories rather than under this repository's plugins/ tree (AGENTS.md:126-136, AGENTS.md:797-813). This is a coupling and maintenance decision, not a judgment on the implementation.
• The existing provider loader supports user-installed profiles at ~/.hermes/plugins/model-providers/<name>/ (providers/__init__.py:91-171). Please publish CommandCode through that standalone path and share it in #plugins-skills-and-skins.

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Closed as not-planned per standing maintainer policy (in-tree-provider-integration). This is a design-direction decision, not a code-quality judgment — see the Contribution Rubric in AGENTS.md for what the project is looking for. If you believe this policy was misapplied to your change, comment here and a maintainer will take a look.

[teknium1]

Merged via PR #88308 — your commit was cherry-picked onto current main with authorship preserved in git history. Thanks for the clean implementation: both profiles, live model fetch, and the test suite all survived intact (all 28 of your tests still pass against CommandCode's current API). We added setup/doctor/dump wiring, docs, and a per-profile base-URL split for desktop parity on top.