chore: refactor agent configurations and update testing instructions

- Updated QA Security agent to use GPT-5.2-Codex and expanded toolset for enhanced functionality.
- Revised Supervisor agent to utilize GPT-5.2-Codex and improved toolset for code review processes.
- Modified architecture instructions to specify running Playwright tests with Firefox.
- Adjusted copilot instructions to run Playwright tests with Firefox as the default browser.
- Created documentation for coding best practices to ensure consistency and quality in project documentation.
- Established HTML/CSS style color guide to maintain accessible and professional design standards.
- Updated Playwright TypeScript instructions to reflect the change in default browser to Firefox.
- Enhanced testing instructions to clarify integration testing processes and default browser settings.
- Updated integration test scripts to align with CI workflows and improve clarity in execution.
- Created new integration test scripts for Cerberus, rate limiting, and WAF functionalities.
- Adjusted E2E testing scripts to default to Firefox and updated documentation accordingly.
- Modified GitHub Actions workflow to run the comprehensive integration test suite.

.github/skills/test-e2e-playwright-debug-scripts/run.sh

@@ -25,7 +25,7 @@ FILE=""
 GREP=""
 SLOWMO=500
 INSPECTOR=false
-PROJECT="chromium"
+PROJECT="firefox"
 
 # Parse command-line arguments
 parse_arguments() {
@@ -91,7 +91,7 @@ Options:
     --grep=PATTERN      Filter tests by title pattern (regex)
     --slowmo=MS         Delay between actions in milliseconds (default: 500)
     --inspector         Open Playwright Inspector for step-by-step debugging
-    --project=PROJECT   Browser to use: chromium, firefox, webkit (default: chromium)
+    --project=PROJECT   Browser to use: chromium, firefox, webkit (default: firefox)
     -h, --help          Show this help message
 
 Environment Variables:
@@ -100,7 +100,7 @@ Environment Variables:
     DEBUG                   Verbose logging (e.g., 'pw:api')
 
 Examples:
-    run.sh                                  # Debug all tests in Chromium
+    run.sh                                  # Debug all tests in Firefox
     run.sh --file=login.spec.ts            # Debug specific file
     run.sh --grep="login"                  # Debug tests matching pattern
     run.sh --inspector                     # Open Playwright Inspector