agent attribution v3

[Haz3-jolt]

Purpose / Description

Remove active Gemini CLI harness references from docs, bundled skill text, and harness tests because Gemini CLI is not a supported Observal harness.

Fixes

No issue linked.

Approach

Removed gemini-cli and Gemini CLI from active docs and test comments. Left historical CHANGELOG.md entries untouched.

How Has This Been Tested?

Ran:

rg -n "gemini-cli|Gemini CLI|gemini cli|google-gemini|geminicli" . --glob '!**/.git/**' --glob '!node_modules/**' --glob '!web/node_modules/**'
python -m pytest tests/test_constants_sync.py tests/test_agent_config_generator.py tests/test_pull_and_agent_cli.py tests/test_agent_composition.py tests/test_harness_config_e2e.py

The only remaining matches are historical changelog entries.

Learning (optional, can help others)

Gemini CLI should not appear in active harness instructions or examples. Historical release notes remain unchanged.

Checklist

• You have a descriptive commit message with a short title (first line, max 50 chars).
• You have commented your code, particularly in hard-to-understand areas
• You have performed a self-review of your own code
• UI changes: include screenshots of all affected screens (in particular showing any new or changed strings)

No UI changes.

AI Assistance

Was generative AI tooling used to co-author this PR?

• Yes(Please Specify the tool): Pi coding agent
• Was the generated code manually reviewed and tested?

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.

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