feat(pair-corpus-honesty): add vibe-py, vfc-js and agent-vfc slices with mechanism vocabulary

Tasks 1.1, 5.1, 5.2, 5.4 and the data half of 5.3.

- mechanisms.toml: closed vocabulary v1 (20 ids) every expected row cites.
- vibe-py: 35 Real-Vuln-Benchmark pairs (Apache-2.0), human provenance only
  because the LLM-generated repositories carry no license (escalated).
- vfc-js: 17 Node fix-commit pairs harvested upstream (MIT/Apache-2.0),
  SecBench.js itself is not vendored (no license); sinks derived on 13/17.
- agent-vfc: 29 agent-trailer fixes as catalog-candidates.toml plus
  REVIEW.md; the loaded catalog stays empty until a human reviews them.
- datasets.toml and README document every slice and its review status.

Co-Authored-By: Claude Fable 5.1 <[email protected]>
Claude-Session: https://claude.ai/code/session_01T7XD7x5KonMdmGRkp63EQG

benchmarks/pairs/vfc-js/portprocesses-1-0-4/fixed.js

@@ -0,0 +1,37 @@
+// Provenance: rrainn/PortProcesses  (fixed).
+// repo: rrainn/PortProcesses
+// commit: 86811216c9b97b01b5722f879f8c88a7aa4214e1
+// parent: fffceb09aff7180afbd0bd172e820404b33c8299
+// commit_url: https://github.com/rrainn/PortProcesses/commit/86811216c9b97b01b5722f879f8c88a7aa4214e1
+// cve: CVE-2021-23348
+// license: MIT
+// function: listProcessesOnPort
+// relpath: index.js
+// provenance: human
+// mechanism: source_reaches_sink
+// upstream_start: 2
+
+const listProcessesOnPort = module.exports.listProcessesOnPort = async port => {
+	const portNumber = parseInt(port, 10);
+	if (Number.isNaN(portNumber)) {
+		console.error("Must provide number for port.");
+		return;
+	}
+	try {
+		const result = (await exec(`lsof -i :${portNumber}`)).output.split('\n');
+		const headers = result.shift().split(' ').filter(item => !!item.trim() && item.trim() !== "").map(item => item.toLowerCase());
+		return result.filter(item => !!item.trim() && item.trim() !== "").reduce((accumulator, currentValue) => {
+			accumulator.push(currentValue.split(' ').filter(item => !!item.trim() && item.trim() !== "").reduce((accumulator, currentValue, index) => {
+				if (index > headers.length - 1) {
+					accumulator[headers[headers.length - 1]] = (!!accumulator[headers[headers.length - 1]].trim() && accumulator[headers[headers.length - 1]].trim() !== "") ? `${accumulator[headers[headers.length - 1]]} ${currentValue}` : currentValue;
+				} else {
+					accumulator[headers[index]] = currentValue;
+				}
+				return accumulator;
+			}, {}));
+			return accumulator;
+		}, []);
+	} catch (e) {
+		console.error(e);
+	}
+};