fix(app): preserve percent sequences in legacy JSON URLs

[fallintoplace]

Summary

• Parse legacy raw JSON before URL decoding so literal percent sequences remain unchanged.
• Keep the decoding fallback for current encoded JSON URL parameters.
• Add regression coverage for %2F, %20, and %25, plus an app changeset.

Checks

• Focused parser unit tests
• App TypeScript check
• Targeted ESLint
• Prettier check
• Common-utils build
• App production build

[vercel]

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[changeset-bot]

🦋 Changeset detected

Latest commit: 37a2d0c

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 3 packages

Name	Type
@hyperdx/app	Patch
@hyperdx/api	Patch
@hyperdx/otel-collector	Patch

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Click here if you're a maintainer who wants to add another changeset to this PR

[greptile-apps]

Greptile Summary

This PR preserves literal percent sequences in legacy raw-JSON URL parameters.

• Parses raw JSON before attempting URI decoding while retaining the encoded-value fallback.
• Adds regression tests for %2F, %20, and %25.
• Adds a patch changeset for @hyperdx/app.

Confidence Score: 5/5

The PR appears safe to merge with no actionable defects identified.

The raw-first branch correctly handles legacy JSON, while current percent-encoded JSON still reaches the decoding fallback and existing validation behavior remains intact.

Important Files Changed

Filename	Overview
packages/app/src/utils/queryParsers.ts	Reorders JSON parsing and URI decoding without breaking the current double-encoded or legacy raw-JSON paths.
packages/app/src/utils/tests/queryParsers.test.ts	Adds focused regression coverage proving that legacy literal percent sequences remain unchanged.
.changeset/preserve-legacy-json-percent-sequences.md	Correctly records the user-visible parser fix as an app patch release.

_{Reviews (1): Last reviewed commit: "fix(app): preserve percent sequences in ..." | Re-trigger Greptile}