Docs: add auto_delete.sessions, rename claude_model_mapping to claude_mapping, and clarify config token handling

[CJackHwang]

Motivation

• Document a new runtime option to control automatic DeepSeek session cleanup and make it adjustable via Admin Settings.
• Standardize the Claude model mapping key and clarify compatibility with previous names.
• Remove confusing token examples from config and explain that runtime tokens are not persisted in config.json.

Description

• Added auto_delete/auto_delete.sessions to GET /admin/settings and PUT /admin/settings in API.en.md and API.md to expose the new setting.
• Replaced claude_model_mapping with claude_mapping across README.MD, README.en.md, and config.example.json while documenting backward compatibility for the old name via reading compatibility.
• Removed token fields from the example accounts entries and added a note that any token in config.json is cleared on load and runtime tokens are kept/refreshed in memory only.
• Updated config.example.json and README files to include admin and runtime defaults and to document auto_delete.sessions with its default value false and runtime hot-reloadability.

Testing

• This is a documentation and config-example change only and did not include automated tests.
• No automated tests were run for these changes.

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Codex Task

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Project	Deployment	Actions	Updated (UTC)
ds2api	Ready	Preview, Comment	Mar 21, 2026 7:32am