interceptor: make request logging optional

[wozniakjan]

This PR contains two minor changes

• makes the request logs optional (and disabled by default)
• also fixes link checking step with lychee, the --base-url no longer accepts relative paths and should be replaced by --root-dir - see also: feat(base-url)!: disallow relative local base to avoid confusion lycheeverse/lychee#1857 and https://github.com/lycheeverse/lychee/releases/tag/lychee-v0.21.0

Checklist

• Commits are signed with Developer Certificate of Origin (DCO)
• Changelog has been updated and is aligned with our changelog requirements
• Any necessary documentation is added, such as:
  • The docs/ directory

[snyk-io]

✅ Snyk checks have passed. No issues have been found so far.

Status	Scanner	Critical	High	Medium	Low	Total (0)
✅	Open Source Security	0	0	0	0	0 issues

💻 Catch issues earlier using the plugins for VS Code, JetBrains IDEs, Visual Studio, and Eclipse.

[Copilot]

Pull Request Overview

This PR makes interceptor request logging optional by introducing a new environment variable KEDA_HTTP_LOG_REQUESTS that defaults to false, addressing performance and log verbosity concerns in production environments.

Key changes:

• Added LogRequests configuration field to enable/disable request logging via KEDA_HTTP_LOG_REQUESTS environment variable
• Modified logging middleware to accept an optional logger pointer and skip logging when nil
• Added documentation for the new configuration option

Reviewed Changes

Copilot reviewed 8 out of 8 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
interceptor/config/serving.go	Added LogRequests boolean field with environment variable binding
interceptor/middleware/logging.go	Changed logger to pointer type and added nil check to make logging optional
interceptor/main.go	Conditionally initializes logger pointer based on LogRequests config
docs/operate.md	Added documentation section for request logging configuration
CHANGELOG.md	Updated with improvement entry for optional request logging
.github/workflows/linkinator.yaml	Fixed lychee link checker argument from --base-url to --root-dir
.github/PULL_REQUEST_TEMPLATE.md	Corrected relative path to docs directory
.github/ISSUE_TEMPLATE/3_release_tracker.md	Fixed malformed markdown link syntax

---

💡 Add Copilot custom instructions for smarter, more guided reviews. Learn how to get started.