PR-H: E2E preregistration for the token-save-practice stack (frozen tasks, metrics, gate, procedure)

.gitignore

@@ -27,6 +27,10 @@ node_modules/
 # CLAUDE_CONFIG_DIR fixture (docs/token-efficiency-stack.md#hosted-ci-coverage-2026-09-26):
 # clearly labelled synthetic content, not host history.
 !fixtures/ccusage-synthetic-claude/**/*.jsonl
+# PR-H's frozen public synthetic log fixture (blind-lane positive control and
+# seed-log-symbol tasks, evidence/artifacts/token-adoption-e2e-20260926/preregistration.json):
+# clearly labelled synthetic content, not host history.
+!evidence/artifacts/token-adoption-e2e-20260926/fixtures/*.jsonl
 adoption/hosts/*.json
 !adoption/hosts/example.json
 !adoption/hosts/macos-example.json

evidence/artifacts/token-adoption-e2e-20260926/fixtures/table.json

@@ -0,0 +1 @@
+[{"id":1,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":17,"note":"public synthetic record"},{"id":2,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":11,"note":"public synthetic record"},{"id":3,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":18,"note":"public synthetic record"},{"id":4,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":12,"note":"public synthetic record"},{"id":5,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":19,"note":"public synthetic record"},{"id":6,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":13,"note":"public synthetic record"},{"id":7,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":20,"note":"public synthetic record"},{"id":8,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":14,"note":"public synthetic record"},{"id":9,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":21,"note":"public synthetic record"},{"id":10,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":15,"note":"public synthetic record"},{"id":11,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":22,"note":"public synthetic record"},{"id":12,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":16,"note":"public synthetic record"},{"id":13,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":10,"note":"public synthetic record"},{"id":14,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":17,"note":"public synthetic record"},{"id":15,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":11,"note":"public synthetic record"},{"id":16,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":18,"note":"public synthetic record"},{"id":17,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":12,"note":"public synthetic record"},{"id":18,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":19,"note":"public synthetic record"},{"id":19,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":13,"note":"public synthetic record"},{"id":20,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":20,"note":"public synthetic record"},{"id":21,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":14,"note":"public synthetic record"},{"id":22,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":21,"note":"public synthetic record"},{"id":23,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":15,"note":"public synthetic record"},{"id":24,"service":"native-ci-fixture","region":"us-east-1","status":"ok","latency_ms":22,"note":"public synthetic record"}]