🧹 Remove unused fetchImpl parameter from crawlCanvasCourse

[google-labs-jules]

🎯 What: Removed the fetchImpl parameter from crawlCanvasCourse in canvas-crawler.js and canvas-crawler.cjs, moving to direct usage of the global fetch API.
💡 Why: The parameter is unnecessary overhead for dependency injection when the global fetch is consistently available, simplifying the function signature and improving code readability.
✅ Verification: Updated test-crawler.js to correctly mock global.fetch rather than passing the mock as a parameter. Successfully ran the script (node test/test-crawler.js) and ensured the entire test suite (./test/smoke-test.sh and ./test/integration-test.sh) passes without regressions.
✨ Result: A cleaner, simpler function signature that behaves identically, reducing cognitive overhead and standardizing network calls.

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PR created automatically by Jules for task 6749917132489333369 started by @savvides

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[savvides]

The fetchImpl parameter is the crawler's test seam, and #109's crawler tests depend on it. Replacing it with a patched global.fetch also leaves fetch patched for the rest of the run if an assertion throws before the restore.

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]

The fetchImpl parameter is the crawler's test seam, and #109's crawler tests depend on it. Replacing it with a patched global.fetch also leaves fetch patched for the rest of the run if an assertion throws before the restore.

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.