E2E Task 1 Report — PPI same-species ID-map wiring

Status contract

Status: COMPLETE
Scope: Task 1 only; Task 2 was not run or modified.
Contract: the CLI accepts and forwards optional --id-map; the backend resolves only <job.input_dir>/<ppi_species>/<ppi_species>.pep_cds_idmap.tsv; projected mode fails before skill launch when that exact map is absent; direct-target mode remains valid without a map and forwards the exact map when present.
Frozen layers preserved: resolver, STRING client, rate gate, Reset, frontend, contracts, and manifest schema were not modified.

CLI forwarding test:
- Command: test_ppi_id_resolution.py -k cli_forwards_id_map -q
- Result: 1 failed, 21 deselected.
- Expected cause: argparse exited with code 2 because --id-map /tmp/soe.pep_cds_idmap.tsv was unrecognized.
Backend command tests before implementation:
- Result: 3 failed, 1 passed.
- Expected causes: projected success command lacked --id-map; projected missing-map and other-species-only cases launched run_cmd_logged; direct-target omission already passed.

Isolated CLI: 1 passed, 21 deselected.
Four backend cases: 4 passed.
Required focused selection: 50 passed, 6 deselected.
Full convergence regression: 75 passed in 7.66 s (the prior 72 plus 3 new test functions; two existing PPI tests were strengthened/repurposed for the other required cases).
py_compile skills/ppi/run.py apps/web/pipeline_backend.py: exit code 0, no output.

All validation used deterministic unit fixtures in test4py311; no network call or live backend execution was used.

skills/ppi/run.py
- Added the specified --id-map argparse option.
- Forwarded Path(args.id_map) or None to the existing PpiSkill.run call.
apps/web/pipeline_backend.py
- Added one inline exact-path lookup immediately before PPI command construction.
- Added projected-mode fail-closed return when the exact same-species map is absent.
- Added conditional --id-map command extension after --mapping.
tests/unit/test_ppi_id_resolution.py
- Added a no-network fake-PpiSkill CLI forwarding test.
tests/unit/test_pipeline_backend_execution_env.py
- Strengthened direct-target coverage to require omission of both --mapping and --id-map.
- Converted projected-reference coverage to soe and asserted exact mapping/ID-map paths.
- Added soe rejection coverage for an ath-only map and for no map.
- Added the exact ath ID-map fixture to the pre-existing successful projected-ath test.
.superpowers/sdd/e2e-task-1-report.md
- Added this evidence and scope report.

Pytest consistently emitted the pre-existing RequestsDependencyWarning for the installed urllib3/chardet/charset_normalizer versions; it did not affect test results.
Git/diff integration was not available by binding instruction, so scope review used the exact edited regions and active-file list rather than a Git diff.
No service/Celery restart or live API/stage run was performed because those belong to the explicitly frozen Task 2 validation. A running backend must be restarted before manually exercising the new command path.
Diagnosis records were not updated because diagnosis is outside the four-file Task 1 scope.