Docs: Document Runtime Error Codes AVX_R04 (COMPUTED_CIRCULAR_DEPENDENCY) and AVX_R05 (COMPUTED_EVALUATION_FAILED) in Troubleshooting Reference

[nathanschmid08]

Feature / Documentation Overview

In docs/src/content/docs/troubleshooting/errors.md, runtime error codes AVX_R04 (COMPUTED_CIRCULAR_DEPENDENCY) and AVX_R05 (COMPUTED_EVALUATION_FAILED) are currently only listed in a summary table without full dedicated reference sections.

In contrast, other error codes (like AVX_R11, AVX_R15, AVX_R16, etc.) have detailed subsections containing the exact error message template, technical root causes, step-by-step resolution steps, incorrect code examples, correct code examples, and defensive coding guidelines.

Proposed Documentation Changes

Add detailed reference sections for AVX_R04 and AVX_R05 in docs/src/content/docs/troubleshooting/errors.md:

1. AVX_R04 — COMPUTED_CIRCULAR_DEPENDENCY:

   • Error Message: Circular dependency detected in computed property "{0}".
   • Cause: Computed property getters referencing themselves directly or indirectly through a chain of dependent computed properties.
   • Resolution: Refactoring computed properties into unidirectional reactive flows.
   • Incorrect & Correct Code Examples.

2. AVX_R05 — COMPUTED_EVALUATION_FAILED:

   • Error Message: Failed to evaluate computed property "{0}": {1}
   • Cause: Unhandled runtime exceptions thrown inside custom computed getter functions (e.g. accessing properties of undefined or null objects).
   • Resolution: Adding optional chaining (?.), default fallback values, and defensive guards inside computed getters.
   • Incorrect & Correct Code Examples.

Verification & Constraints

• Verified zero duplicate issues exist (checked all open and closed issues 3 times).
• Formatted according to Starlight / Astro markdown documentation guidelines.