fix: ignore missing dbgId for unreal syms

[bobbyg603]

Description

Unreal has their own sym file format... It's a funky binary encoded file with no UUID. Here's what it looks like decoded:

[0] 0x05bc9000  _start  <out of bounds>:?
[1] 0x05bc902b  deregister_tm_clones  <out of bounds>:?
[2] 0x05bc904d  register_tm_clones  <out of bounds>:?
[3] 0x05bc9086  __do_global_dtors_aux  <out of bounds>:?
[4] 0x05bc90f5  frame_dummy  <out of bounds>:?
[5] 0x05bc9100  BuildSettings::IsLicenseeVersion()  D:/HordeSandbox/Full/Sync/Engine/Source/./Runtime/BuildSettings/Private/BuildSettings.cpp:9
[6] 0x05bc9103  ?????????????  <out of bounds>:?
[7] 0x05bc9110  BuildSettings::GetCurrentChangelist()  D:/HordeSandbox/Full/Sync/Engine/Source/./Runtime/BuildSettings/Private/BuildSettings.cpp:34
[8] 0x05bc9113  ?????????????  <out of bounds>:?
[9] 0x05bc9120  BuildSettings::GetCompatibleChangelist()  D:/HordeSandbox/Full/Sync/Engine/Source/./Runtime/BuildSettings/Private/BuildSettings.cpp:39

We load these files by matching application name/version. Fix by allowing this to fall through to our legacy symbol server path.

Checklist

• Tested manually
• Unit tests pass with no errors or warnings
• Documentation updated (if applicable)
• Reviewed by at least 1 other contributor

[Copilot]

Pull request overview

Updates the symbol upload worker to avoid skipping certain symbol-like artifacts that lack a dbgId (notably Unreal-generated symbols), so they can be uploaded via the legacy (app/version-based) symbol upload path instead of the UUID-based path.

Changes:

• Adds logic in UploadWorker.uploadSingle to route additional files to the legacy upload path when dbgId is missing.
• Minor formatting cleanup in src/sym.ts.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 3 comments.

File	Description
src/worker.ts	Adds new conditional handling intended to treat Unreal symbols without dbgId as legacy uploads rather than skipping.
src/sym.ts	Removes an extra blank line in a comment block (no functional behavior change).

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