chore(merge): enforce policy removals (images + cargo caches)

.github/auto/MERGE_PLAN.md

@@ -1,47 +0,0 @@
-Upstream merge plan (by-bucket)
-
-Mode: by-bucket
-
-Strategy
-- Adopt upstream broadly outside protected areas; resolve conflicts minimally.
-- Prefer ours for TUI and fork-only core glue per policy to preserve browser/agent tools, UA/version semantics, and strict ordering.
-- Prefer theirs for shared libraries (common, exec, file-search) unless it breaks our build or documented behavior.
-- Purge any reintroduced GitHub image assets matching purge globs.
-
-Buckets
-- prefer_ours_globs
-  - codex-rs/tui/**
-  - codex-cli/**
-  - codex-rs/core/src/openai_tools.rs
-  - codex-rs/core/src/codex.rs
-  - codex-rs/core/src/agent_tool.rs
-  - codex-rs/core/src/default_client.rs
-  - codex-rs/protocol/src/models.rs
-  - .github/workflows/**
-  - docs/**
-  - AGENTS.md, README.md, CHANGELOG.md
-
-- prefer_theirs_globs
-  - codex-rs/common/**
-  - codex-rs/exec/**
-  - codex-rs/file-search/**
-
-- purge_globs
-  - .github/codex-cli-*.png|jpg|jpeg|webp
-
-Invariants to preserve
-- Handlers and schemas for browser_* and agent_* tools; include web_fetch.
-- Exposure gating for browser tools remains intact.
-- Screenshot queuing semantics across turns preserved.
-- Version/UA helpers: codex_version::version() and get_codex_user_agent_default().
-- Public re-exports in codex-core: ModelClient, Prompt, ResponseEvent, ResponseStream.
-- codex_core::models alias to protocol models remains.
-- Do not remove ICU/sys-locale deps if referenced.
-
-Process
-1) Merge upstream/main into upstream-merge with --no-commit.
-2) Resolve conflicts per buckets (ours/theirs/default adopt upstream).
-3) Ensure purge_globs stay deleted if reintroduced.
-4) Run scripts/upstream-merge/verify.sh and ./build-fast.sh; fix minimal issues.
-5) Commit with a conventional message and summarize results in MERGE_REPORT.md.
-

.github/auto/MERGE_REPORT.md

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-Upstream merge report
-
-Branch: upstream-merge
-Upstream: openai/codex@main
-Mode: by-bucket
-
-Incorporated
-- Adopted upstream changes across core, common, exec, and workspace where no fork-only invariants were impacted.
-- No newly reintroduced purge_globs found; image purge not required this round.
-
-Dropped/Kept Ours
-- codex-rs/tui/src/chatwidget.rs: kept ours to preserve strict streaming ordering and RunningCommand/HistoryCell semantics that our TUI relies on.
-- Preserved fork-only core glue and APIs (no upstream changes conflicting this round):
-  - codex-rs/core/src/openai_tools.rs (browser_*/agent_* tools and web_fetch exposure)
-  - codex-rs/core/src/codex.rs (execution events + UA/version handling)
-  - codex-rs/core/src/agent_tool.rs (multi-agent orchestration)
-  - codex-rs/core/src/default_client.rs (versioned UA)
-  - codex-rs/protocol/src/models.rs (models mapping and aliases)
-
-Other Notes
-- Public re-exports (ModelClient, Prompt, ResponseEvent, ResponseStream) were preserved.
-- codex_core::models alias remains intact.
-- Verify script passed: tools/UA/version guards OK.
-- build-fast.sh passed with zero warnings.
-

.github/auto/PR_BODY.md

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-Title: merge(upstream): sync fork with openai/codex main (by-bucket)
-
-Summary
-- Merge upstream main into our fork’s `upstream-merge` using by-bucket policy.
-- Keep our TUI and fork-only core glue; adopt upstream improvements elsewhere.
-
-Key Decisions
-- TUI: kept ours for `codex-rs/tui/src/chatwidget.rs` to preserve strict ordering and HistoryCell/RunningCommand semantics.
-- Core invariants preserved: browser_*/agent_* tools and web_fetch exposure gating; screenshot queue semantics; UA/version helpers.
-- Prefer theirs for shared crates (common/exec/file-search) where applicable.
-- No purge_globs assets reintroduced.
-
-Verification
-- scripts/upstream-merge/verify.sh: PASS
-- ./build-fast.sh: PASS (no warnings)
-
-Notes
-- Public re-exports (ModelClient, Prompt, ResponseEvent, ResponseStream) retained.
-- codex_core::models alias preserved.
-