Added Cap::DATA_EXFIL and taint fp and fn fixes on real repos (#59)

* feat: Enhance data exfiltration detection with source sensitivity gating for cookies and headers

* feat: Implement cross-file data exfiltration detection with parameter-specific gate filters

* feat: Add calibration tests and refine DATA_EXFIL severity scoring logic

* feat: Introduce per-detector configuration for data exfiltration suppression

* feat: Enhance DATA_EXFIL findings with destination field tracking in diagnostics and SARIF output

* feat: Add tainted body and URL handling for data exfiltration detection

* feat: Add integration tests and fixtures for DATA_EXFIL and SSRF detection in Go

* feat: Add Java integration tests and fixtures for DATA_EXFIL detection across multiple HTTP clients

* feat: Add synthetic externals handling for closure-captured variables in SSA

* feat: Implement closure-based suppression for resource leak findings

* feat: Add regression guards for shell-injection and taint propagation in for-of destructure patterns

* feat: Implement constructor cap narrowing for data exfiltration detection in HTTP request builders

* feat: Add gated sinks for data exfiltration detection in C and C++ using curl_easy_setopt

* feat: Implement DATA_EXFIL cap parity for backwards analysis and add integration tests

* feat: Add data exfiltration sinks for various languages and enhance documentation

* refactor: Simplify formatting and improve readability in various files

* refactor: Improve readability by simplifying conditional statements and adding clippy linting

* docs: Update CHANGELOG and comments for data exfiltration features and configuration

* docs: Clarify configuration instructions for data exfiltration trusted destinations

* docs: Enhance comments for evidence routing logic in data exfiltration

tests/db_corruption_tests.rs

@@ -38,12 +38,17 @@ fn test_cfg() -> Config {
 }
 
 fn seed_project(root: &Path) {
+    // Use the qualified `child_process.exec` form so the seed produces a
+    // taint finding under the post-fix label rules (bare `exec` as a flat
+    // sink was removed because it suffix-matched any `<recv>.exec`, e.g.
+    // Dockerode `container.exec`).  The qualified form is the canonical
+    // Node.js stdlib path and stays a flat sink.
     std::fs::write(
         root.join("cmdi.js"),
-        b"const cp = require('child_process');\n\
+        b"const child_process = require('child_process');\n\
           const express = require('express');\n\
           const app = express();\n\
-          app.get('/x', (req, res) => { cp.exec(req.query.cmd); res.send('ok'); });\n",
+          app.get('/x', (req, res) => { child_process.exec(req.query.cmd); res.send('ok'); });\n",
     )
     .unwrap();
 }