B2BEA.org Rebuild build-execution S-46

• Moved course lesson player behavior into /assets/js/course-lesson-runtime.js.
• Passed courseId, lessonId, and courseSlug via deferred script data attributes instead of inline JavaScript variables.
• Kept lesson template markup and legacy inline style attributes in place while removing the behavioral inline IIFE.
• Fixed the module-complete overlay title target by replacing duplicate id attributes with aria-labelledby="overlay-module-title" and h2 id="overlay-module-title".
• Added focused course runtime governance coverage for the lesson runtime asset and overlay target.

• Red test first: node --test test/courseRuntime.test.js failed on missing /assets/js/course-lesson-runtime.js.
• node --check src/assets/js/course-lesson-runtime.js: passed
• node --test test/courseRuntime.test.js: 2/2 passed
• node scripts/audit-css-governance.js: passed
• git diff --check: passed
• npm test: 110/110 passed
• npm run build: Eleventy copied 118 assets and wrote 126 files
• GitHub Actions build: passed in 22s
• Cloudflare Pages: passed
• Local fast-forward initially hit bad object refs/Icon? after merge; narrow Icon cleanup plus fetch refreshed origin/main.

feature/b2bea-slice-46-lesson-runtime

https://github.com/b2bea-org/b2bea-website/pull/81

Start Slice 47 from origin/main; continue with course module challenge/test/feedback runtimes, podcast page runtime, OroCommerce vendor page runtime, or the larger vendor portal runtime.

• Moved course lesson player behavior into /assets/js/course-lesson-runtime.js.
• Passed courseId, lessonId, and courseSlug via deferred script data attributes instead of inline JavaScript variables.
• Kept lesson template markup and legacy inline style attributes in place while removing the behavioral inline IIFE.
• Fixed the module-complete overlay title target by replacing duplicate id attributes with aria-labelledby="overlay-module-title" and h2 id="overlay-module-title".
• Added focused course runtime governance coverage for the lesson runtime asset and overlay target.

Start Slice 47 from origin/main; continue with course module challenge/test/feedback runtimes, podcast page runtime, OroCommerce vendor page runtime, or the larger vendor portal runtime.

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