AI Fix Prompts for Deepflow

Fix a hardcoded credential in repository 'Optimal-Living-Systems__deepflow'.

**Issue**: Hard-coded password found (Database URL with Password)
**File**: deploy/docker-compose.stack.yml
**Line**: 56
**Severity**: CRITICAL

**Current code around the issue:**
```
      51 |     depends_on:
      52 |       - postgres
      53 |       - deepflow-runtime
      54 |       - deepflow-mcp
      55 |     environment:
>>>   56 |       LANGFLOW_DATABASE_URL: postgresql://langflow:langflow@postgres:5432/langflow_stack
      57 |       LANGFLOW_CONFIG_DIR: /app/langflow
      58 |       LANGFLOW_COMPONENTS_PATH: /app/deepflow_components
      59 |       DEEPFLOW_RUNTIME_URL: http://deepflow-runtime:8011
      60 |     volumes:
      61 |       - langflow-data-stack:/app/langflow
```

**Required fix:**
1. Remove the hardcoded credential from the source code
2. Replace it with an environment variable read: `os.environ.get('PASSWORD_KEY')` (Python) or `process.env.PASSWORD_KEY` (JS)
3. Add the variable name to a `.env.example` file with a placeholder value
4. Ensure `.env` is in `.gitignore`
5. If this credential was ever committed to git, it should be considered compromised and rotated

**Do NOT:**
- Move the secret to a config file that gets committed
- Use a default fallback value that is a real credential
- Leave the old credential in a comment

Address OWASP A02 (Cryptographic Failures) compliance gap in 'Optimal-Living-Systems__deepflow'.

**OWASP Category**: A02 -- Cryptographic Failures
**Fix guidance**: Remove hardcoded secrets, use strong encryption (AES-256-GCM), enforce TLS, never store passwords in plaintext (use bcrypt/argon2).

**Steps:**
1. Identify all code paths related to cryptographic failures
2. Apply the fixes described above
3. Add automated tests to verify the fix
4. Document any security assumptions in code comments

Address OWASP A06 (Vulnerable Components) compliance gap in 'Optimal-Living-Systems__deepflow'.

**OWASP Category**: A06 -- Vulnerable Components
**Fix guidance**: Update all dependencies to latest stable versions, remove unused dependencies, monitor for new CVEs.

**Steps:**
1. Identify all code paths related to vulnerable components
2. Apply the fixes described above
3. Add automated tests to verify the fix
4. Document any security assumptions in code comments

Address OWASP A07 (Auth Failures) compliance gap in 'Optimal-Living-Systems__deepflow'.

**OWASP Category**: A07 -- Auth Failures
**Fix guidance**: Implement proper session management, use MFA where possible, enforce strong passwords, protect against brute force.

**Steps:**
1. Identify all code paths related to auth failures
2. Apply the fixes described above
3. Add automated tests to verify the fix
4. Document any security assumptions in code comments

Repository 'Optimal-Living-Systems__deepflow' is failing the quality gate.

Failed conditions:
- overall_score: actual 0.0 >= 50 (FAILED)
- security_score: actual 0.0 >= 40 (FAILED)
- critical_vulnerabilities: actual 21.0 <= 0 (FAILED)
- critical_credentials: actual 1.0 <= 0 (FAILED)

Fix each failing condition to make the repo pass the quality gate.

Repository 'Optimal-Living-Systems__deepflow' has 10 open issues:

- [CRITICAL] GHSA-6643-h7h5-x9wh: langchain
- [CRITICAL] GHSA-92j5-3459-qgp4: langchain
- [CRITICAL] GHSA-h8pj-cxx2-jfg2: httpx
- [CRITICAL] GHSA-57fc-8q82-gfp3: langchain
- [CRITICAL] GHSA-7gfq-f96f-g85j: langchain
- [CRITICAL] GHSA-8h5w-f6q9-wg35: langchain
- [CRITICAL] Hard-coded password: Database URL with Password (deploy/docker-compose.stack.yml)
- [CRITICAL] GHSA-vqfr-h8mv-ghfj: h11
- [CRITICAL] GHSA-2qmj-7962-cjq8: langchain
- [CRITICAL] GHSA-f73w-4m7g-ch9x: langchain

Resolve each issue. For security issues, apply the appropriate fix. For quality issues, refactor the affected code.