Updates

Author: PDowney

.github/CODE_OF_CONDUCT.md

@@ -54,4 +54,4 @@ respond in a way that they deem appropriate to the circumstances.
 
 This Code of Conduct is adapted from the [Contributor Covenant](https://www.contributor-covenant.org),
 version 2.1, available at
-[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html](https://www.contributor-covenant.org/version/2/1/code_of_conduct.html).
+[https://www.contributor-covenant.org/version/2/1/code_of_conduct.html](https://www.contributor-covenant.org/version/2/1/code_of_conduct.html).

.github/copilot-instructions.md

@@ -57,8 +57,7 @@ applyTo: '**'
 
 **Version Release Process (only when instructed):**
 - Follow semantic versioning (MAJOR.MINOR.PATCH)
-- Update version in: plugin header, README.md, readme.txt, CHANGELOG.md, GEMINI.md, and language files (.pot)
-- Update version in: constants section, .pot files, package.json, composer.json
+- Update version in: plugin header, README.md, readme.txt, CHANGELOG.md, GEMINI.md, and `.pot` language files, constants section, package.json, and composer.json
 - Move "Unreleased" changes to new version section in both changelogs
 - **Never auto-update versions** - wait for explicit instruction
 
@@ -67,6 +66,11 @@ applyTo: '**'
 - Write clear function/class descriptions
 - Document security considerations and hooks used
 
+**Internationalization (i18n):**
+- Update `.pot` language files when adding or modifying translatable strings
+- Always use the correct text domain when dealing with translation functions
+- Mark all user-facing strings with `__()`, `_e()`, `esc_html__()`, `esc_attr__()`, etc.
+
 ## ⚡ Performance & Quality
 
 **Performance Optimization:**