⚡ Refactor Canvas Crawler fetches to run concurrently

[google-labs-jules]

💡 What: Refactored crawlCanvasCourse to fetch Canvas course details and assignment lists concurrently using Promise.all(), replacing the previous sequential awaits. Both the .js and .cjs versions of canvas-crawler were updated to keep them in sync. Existing error handling semantics (e.g. throwing on course failure, catching on assignment failure) were preserved.

🎯 Why: The previous implementation awaited the course data response, then its JSON payload, and then initiated the request for the assignments list. Because these requests do not depend on each other, this sequential execution was highly inefficient and increased latency unnecessarily. Running them in parallel reduces the overall network wait time significantly.

📊 Measured Improvement:
A dedicated test benchmark was implemented with mocked 50ms network delay per fetch and 10ms JSON parsing latency, looping over the function 20 times.

• Baseline: 2442 ms
• Optimized: 1219 ms
• Improvement: ~50% reduction in total simulated execution time, directly mapping to the elimination of the sequential network wait loop.

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PR created automatically by Jules for task 13465145031442609993 started by @savvides

[google-labs-jules]

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[savvides]

#109 rewrote crawlCanvasCourse to follow Canvas pagination and to fail loudly: a failed assignments request now stops the audit. This PR keeps the old behaviour of turning a failed assignments fetch into [], which made the course audit report a course with no assessments (finding F12 in #109). Duplicate of #94.

Closing as part of triaging the open PRs against #109, which restructures the extension (it removes the .cjs twins, renames test/test-*.js to .mjs, and rewrites the crawler and side panel). It is up to date with main as of ee79db2.

[google-labs-jules]

#109 rewrote crawlCanvasCourse to follow Canvas pagination and to fail loudly: a failed assignments request now stops the audit. This PR keeps the old behaviour of turning a failed assignments fetch into [], which made the course audit report a course with no assessments (finding F12 in #109). Duplicate of #94.

Closing as part of triaging the open PRs against #109, which restructures the extension (it removes the .cjs twins, renames test/test-*.js to .mjs, and rewrites the crawler and side panel). It is up to date with main as of ee79db2.

Understood. Acknowledging that this work is now obsolete and stopping work on this task.