rka-oai
b294638bb5
## Stack Stacked on #29417. Review and land that PR first. ## Summary - reject HTTP(S) image URLs in the handlers for `turn/start` and `turn/steer` - validate `thread/inject_items` after its existing JSON-to-`ResponseItem` conversion, so each item is deserialized once - turn invalid dynamic-tool image responses into the existing unsuccessful text fallback; the model receives the validation message as the function output - leave `thread/resume.history` compatible with legacy history; #29417 replaces remote images before model input - continue accepting inline data URLs and `localImage` inputs - keep this policy in app-server; this PR does not add a shared protocol API or change core image preparation ## Test plan - `just test -p codex-app-server -E 'test(/request_handlers_reject_remote_image_urls|dynamic_tool_remote_image_response_becomes_model_visible_error|dynamic_tool_call_round_trip_sends_content_items_to_model|turn_start_tracks_turn_event_analytics|standalone_image_edit_uses_recent_pathless_image/)'` (5 passed) - `just fix -p codex-app-server` - `just fmt`
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