[WIP] Update OpenAI default model list in code and documentation

[Copilot]

Update OpenAI Model List to New Sequence

• Update drone/config.py to add gpt-5.2 and gpt-5.1-codex-max ModelConfig entries
• Update drone/config.py to remove gpt-5 ModelConfig entry
• Update drone/config.py to reorder models to new sequence
• Update web_api.py /api/providers endpoint with new model list and order
• Update drone/interactive_setup.py PROVIDERS dict with new model list and order
• Update README.md supported AI providers table with new model list
• Update README_ZH.md supported AI providers table with new model list
• Verify no syntax errors and test the changes

Original prompt

Update the OpenAI default model list across code and docs to the new sequence: "gpt-5.2", "gpt-5.1-codex-max", "gpt-5.1-codex-mini", "gpt-5.1-codex", "gpt-5.1", "gpt-5-mini", "gpt-5-nano".

Scope:

• Update backend default model configs (ModelConfig entries) so the new models and order are used by default. Ensure gpt-5.2 and gpt-5.1-codex-max have proper ModelConfig definitions.
• Update /api/providers response in web_api.py to reflect the new OpenAI model list and ordering.
• Update the interactive setup provider list in drone/interactive_setup.py to the new OpenAI model list and ordering.
• Update documentation tables/lists in README.md and README_ZH.md where the OpenAI model list is shown, to match the new list and order.

Acceptance criteria:

• All occurrences of the old OpenAI default list are replaced with the new list and order.
• No stale references to removed models remain.
• Code runs (no syntax errors) and model config keys align with the exposed lists.
• Docs reflect the new OpenAI models list.

This pull request was created from Copilot chat.

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