Phase 1 (#33)

* chore: Exclude CLAUDE.md from Cargo.toml

* feat: add callgraph module and integrate into main analysis flow

* feat: enhance CLI with new severity filtering and analysis modes

* feat: update CHANGELOG with recent enhancements and fixes to severity filtering and output handling

* feat: implement state-model dataflow analysis for resource lifecycle and auth state

* feat: enhance diagnostic output formatting and add evidence structure

* feat: implement attack surface ranking for diagnostics with scoring and sorting

* feat: add comprehensive documentation for installation, usage, and rules reference

* feat: add multiple language support for command execution and evaluation endpoints

* feat: implement inline suppression for findings using `nyx:ignore` comments

* feat: add confidence levels to AST patterns and update output structure

* feat: implement low-noise prioritization system with category filtering, rollup grouping, and configurable budgets

* feat: bump version to 0.4.0 and update changelog with new features and improvements

* feat: add dead code allowances to various functions in mod.rs and real_world_tests.rs

tests/fixtures/real_world/java/taint/reflection.expect.json

@@ -0,0 +1,35 @@
+{
+  "description": "User-controlled class name flows into Class.forName \u2014 arbitrary class instantiation",
+  "tags": [
+    "taint",
+    "reflection",
+    "servlet"
+  ],
+  "modes": [
+    "full"
+  ],
+  "expected": [
+    {
+      "rule_id": "java.reflection.class_forname",
+      "severity": null,
+      "must_match": true,
+      "line_range": [
+        6,
+        10
+      ],
+      "evidence_contains": [],
+      "notes": "AST pattern detects Class.forName() call"
+    },
+    {
+      "rule_id": "taint-unsanitised-flow",
+      "severity": null,
+      "must_match": true,
+      "line_range": [
+        5,
+        10
+      ],
+      "evidence_contains": [],
+      "notes": "request.getParameter(\"class\") flows directly into Class.forName(className)"
+    }
+  ]
+}