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## Why Codex assisted-code attribution needs a client-side accepted-code source that does not upload raw code. This adds a hash-only analytics event derived from the turn diff so downstream attribution can compare accepted Codex lines against commit or PR diffs. ## What Changed - Parse accepted/effective added lines from the final turn diff and emit `codex_accepted_line_fingerprints` analytics. - Hash repo, path, and normalized line content before upload; raw code and raw diffs are not included in the event. - Chunk large fingerprint payloads and send accepted-line fingerprint events in isolated requests while preserving normal batching for other analytics events. - Canonicalize Git remote URLs before repo hashing so SSH/HTTPS GitHub remotes join to the same repo hash. - Add parser coverage for unified diff hunk lines that look like `+++` or `---` file headers. ## Verification - `cargo test -p codex-analytics` - `cargo test -p codex-git-utils canonicalize_git_remote_url` - `just fix -p codex-analytics` - `just bazel-lock-check` - `git diff --check`