256 fuzz testing (#760)

* Implement comprehensive fuzz testing automation (#256)

- Add property-based testing with Hypothesis for JSON-RPC, JSONPath, and schema validation
- Add coverage-guided fuzzing with Atheris for deep code path exploration
- Add API endpoint fuzzing with Schemathesis for contract validation
- Add security-focused testing for vulnerability discovery (SQL injection, XSS, etc.)
- Add complete Makefile automation with fuzz-all, fuzz-quick, fuzz-extended targets
- Add optional [fuzz] dependency group in pyproject.toml for clean installation
- Add comprehensive reporting with JSON/Markdown outputs and executive summaries
- Add complete developer documentation with examples and troubleshooting guides
- Exclude fuzz tests from main test suite to prevent auth failures
- Found multiple real bugs in JSON-RPC validation during development

Signed-off-by: Mihai Criveti <crivetimihai@gmail.com>

* Update fuzz testing

Signed-off-by: Mihai Criveti <crivetimihai@gmail.com>

* Update fuzz testing

Signed-off-by: Mihai Criveti <crivetimihai@gmail.com>

---------

Signed-off-by: Mihai Criveti <crivetimihai@gmail.com>

Author: crivetimihai

pyproject.toml

@@ -58,9 +58,14 @@ dependencies = [
     "jinja2>=3.1.6",
     "jq>=1.10.0",
     "jsonpath-ng>=1.7.0",
+<<<<<<< HEAD
     "jsonschema>=4.25.1",
     "mcp>=1.13.0",
     "oauthlib>=3.3.1",
+=======
+    "jsonschema>=4.25.0",
+    "mcp>=1.13.0",
+>>>>>>> 24626ca2 (256 fuzz testing (#760))
     "parse>=1.20.2",
     "psutil>=7.0.0",
     "pydantic>=2.11.7",
@@ -96,7 +101,11 @@ fuzz = [
     "hypothesis>=6.138.2",
     "pytest-benchmark>=5.1.0",
     "pytest-xdist>=3.8.0",
+<<<<<<< HEAD
     "schemathesis>=4.1.0",
+=======
+    "schemathesis>=4.0.26",
+>>>>>>> 24626ca2 (256 fuzz testing (#760))
 ]
 
 # Coverage-guided fuzzing (requires clang/libfuzzer)