XY-883: [ELF benchmark P2] Repair first-generation OSS adapter real-world coverage

[yvette-carlisle]

Summary

• isolate qmd, memsearch, and mem0 live-baseline corpus mutation with per-adapter corpus copies
• harden claude-mem live-baseline coverage with durable SQLite lifecycle, reopen, and detail/source hydration checks
• update the external adapter manifest, report assertions, and benchmark runbook so local OSS behavior stays distinct from hosted or not-encoded claims

Verification

• bash -n scripts/live-baseline-benchmark.sh
• jq . apps/elf-eval/fixtures/real_world_external_adapters/memory_projects_manifest.json >/dev/null
• cargo test -p elf-eval --test real_world_job_benchmark real_world_report_includes_external_adapter_coverage_manifest --all-features
• cargo make real-world-memory
• ELF_BASELINE_PROJECTS=qmd,memsearch,mem0,claude-mem cargo make baseline-live-docker
• ELF_BASELINE_PROJECTS=claude-mem cargo make baseline-live-docker
• cargo make fmt
• cargo make lint-fix
• cargo make checks