refactor: Update all modules to use new create_finding signature

Updated 10 modules to use the new create_finding() signature with required rule_id and found_by parameters:

- llm_analyzer.py: Added FoundBy and LLMContext for AI-detected findings
- bandit_analyzer.py: Added tool attribution and moved CWE/confidence to proper fields
- security_analyzer.py: Updated all three finding types (secrets, SQL injection, dangerous functions)
- mypy_analyzer.py: Added tool attribution and moved column info to column_start
- mobsf_scanner.py: Updated all 6 finding types (permissions, manifest, code analysis, behavior) with proper line number handling
- opengrep_android.py: Added tool attribution, proper CWE/OWASP formatting, and confidence mapping
- dependency_scanner.py: Added pip-audit attribution for CVE findings
- file_scanner.py: Updated both sensitive file and enumeration findings
- cargo_fuzzer.py: Added fuzzer type attribution for crash findings
- atheris_fuzzer.py: Added fuzzer type attribution for Python crash findings

All modules now properly track:
- Finding source (module, tool name, version, type)
- Confidence levels (high/medium/low)
- CWE and OWASP mappings where applicable
- LLM context for AI-detected issues

backend/toolbox/modules/fuzzer/atheris_fuzzer.py

@@ -19,7 +19,7 @@ from typing import Dict, Any, List, Optional, Callable
 import uuid
 
 import httpx
-from modules.base import BaseModule, ModuleMetadata, ModuleResult, ModuleFinding
+from modules.base import BaseModule, ModuleMetadata, ModuleResult, ModuleFinding, FoundBy
 
 logger = logging.getLogger(__name__)
 
@@ -556,7 +556,16 @@ class AtherisFuzzer(BaseModule):
             # Encode crash input for storage
             crash_input_b64 = base64.b64encode(crash["input"]).decode()
 
+            # Create FoundBy attribution
+            found_by = FoundBy(
+                module="atheris_fuzzer",
+                tool_name="Atheris",
+                tool_version="unknown",
+                type="fuzzer"
+            )
+
             finding = self.create_finding(
+                rule_id=f"fuzzer_crash_{crash['exception_type'].lower().replace(' ', '_')}",
                 title=f"Crash: {crash['exception_type']}",
                 description=(
                     f"Atheris found crash during fuzzing:\n"
@@ -566,6 +575,8 @@ class AtherisFuzzer(BaseModule):
                 ),
                 severity="critical",
                 category="crash",
+                found_by=found_by,
+                confidence="high",  # Fuzzer-found crashes are highly reliable
                 file_path=str(target_path),
                 metadata={
                     "crash_input_base64": crash_input_b64,

backend/toolbox/modules/fuzzer/cargo_fuzzer.py

@@ -13,7 +13,7 @@ import time
 from pathlib import Path
 from typing import Dict, Any, List, Optional, Callable
 
-from modules.base import BaseModule, ModuleMetadata, ModuleResult, ModuleFinding
+from modules.base import BaseModule, ModuleMetadata, ModuleResult, ModuleFinding, FoundBy
 
 logger = logging.getLogger(__name__)
 
@@ -426,14 +426,25 @@ class CargoFuzzer(BaseModule):
             else:
                 severity = "high"
 
+            # Create FoundBy attribution
+            found_by = FoundBy(
+                module="cargo_fuzz",
+                tool_name="cargo-fuzz",
+                tool_version="0.11.2",
+                type="fuzzer"
+            )
+
             # Create finding
             finding = self.create_finding(
+                rule_id=f"fuzzer_crash_{error_type.lower().replace(' ', '_')}",
                 title=f"Crash: {error_type} in {target_name}",
                 description=f"Cargo-fuzz discovered a crash in target '{target_name}'. "
                            f"Error type: {error_type}. "
                            f"Input size: {len(crash_input)} bytes.",
                 severity=severity,
                 category="crash",
+                found_by=found_by,
+                confidence="high",  # Fuzzer-found crashes are highly reliable
                 file_path=f"fuzz/fuzz_targets/{target_name}.rs",
                 code_snippet=stack_trace[:500],
                 recommendation="Review the crash details and fix the underlying bug. "