Delete providers.example.toml

[Teng91]

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[github-actions]

Test Coverage

File	Stmts	Miss	Cover	Missing
src/chatbot_plugin
__init__.py	0	0	100%
config.py	13	0	100%
db.py	14	3	78%	26–28
routers.py	30	4	86%	36–38, 43
service.py	44	0	100%
src/chatbot_plugin/contracts
__init__.py	3	0	100%
requests.py	10	0	100%
responses.py	21	0	100%
src/chatbot_plugin/llm
__init__.py	6	0	100%
base_provider.py	29	1	96%	85
bootstrap.py	42	0	100%
claude_provider.py	16	0	100%
config.py	10	1	90%	22
gemini_provider.py	32	0	100%
openrouter_provider.py	23	0	100%
resilient_llm_service.py	33	0	100%
src/chatbot_plugin/llm/rate_limit
__init__.py	4	0	100%
no_op_strategy.py	6	0	100%
quota_strategy.py	7	0	100%
sliding_window_strategy.py	60	3	95%	39, 68, 70
src/chatbot_plugin/models
__init__.py	2	0	100%
article.py	23	1	95%	49
src/chatbot_plugin/rag
__init__.py	2	0	100%
chain.py	8	0	100%
prompt.py	29	0	100%
retriever.py	15	0	100%
TOTAL	482	13	97%

Tests	Skipped	Failures	Errors	Time
136	0 💤	0 ❌	0 🔥	16.000s ⏱️