sentry: ignore Office add-in + ResizeObserver browser noise

[utsengar]

Summary

• Filters the Object Not Found Matching Id:1, MethodName:update, ParamCount:4 unhandled rejection (Sentry issue HTMLBIN-2) — it comes from the Microsoft Office Editor browser add-in misbehaving in the page context on Windows + Edge/Chrome, not from htmlbin code.
• Adds two ResizeObserver filters (loop limit exceeded, loop completed with undelivered notifications) — benign Chrome implementation detail every Sentry project filters eventually.
• Implemented as a single ignoreErrors array passed to Sentry.init({...}) in the inline /sentry.js body at src/index.ts:243.

Why this is safe

• ignoreErrors is a substring/regex match — it only drops events whose message matches these very specific strings, none of which appear anywhere in our own code (grep confirms zero matches for "Object Not Found Matching Id" or "ResizeObserver loop" in src/).
• The Sentry SDK still records all other unhandled rejections; this only removes the known third-party noise classes.

Test plan

• Preview URL boots, /sentry.js serves the updated body, Sentry.init call now includes ignoreErrors
• No regression in real error capture — trigger a synthetic error in DevTools (Promise.reject(new Error("test"))) and confirm it still reaches Sentry
• After merge: mark HTMLBIN-2 as resolved in the Sentry UI so existing events stop re-firing (filter only drops future events)

🤖 Generated with Claude Code

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