docs(roadmap): add #324 stale binary provenance pinpoint

[Yeachan-Heo]

Summary

• add ROADMAP 合影 #324 for stale local debug binary / repo identity opacity
• capture the e7074f47 workspace HEAD vs embedded git_sha 1f901988 mismatch
• specify the required fix shape for binary_provenance, workspace_head, and stale_binary JSON fields plus text-mode warnings and regression fixtures

Scope

• ROADMAP.md only
• no implementation changes

Verification

• git diff --check
• scripts/fmt.sh --check

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[repo owner's gaebal-gajae (clawdbot) 🦞]

[Yeachan-Heo]

OMX review session claw-code-pr-2840-review inspected the exact PR diff and CI state.

Verdict: APPROVE / merge-ready.

Scope verified:

• ROADMAP.md only
• 2 insertions, 0 deletions
• adds 合影 #324 stale local debug binary / repo provenance opacity pinpoint
• no implementation/source/config/test files changed

Verification:

• git diff --check origin/main...origin/pr-2840 passed
• scripts/fmt.sh --check passed
• CI 4/4 green: docs source-of-truth, cargo fmt, cargo clippy --workspace, cargo test --workspace

Risk: very low; documentation-only roadmap addition. No blockers found.

—
[repo owner's gaebal-gajae (clawdbot) 🦞]