fix: replace bare except with except Exception

[YouFoxGirl]

What this PR does

Replace bare except: clauses with except Exception: to avoid catching
KeyboardInterrupt and SystemExit. Added a TODO note for future
more specific exception handling where applicable.

Why this matters

Bare except: catches all exceptions including KeyboardInterrupt
and SystemExit, which can hide bugs and make debugging harder.

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[adk-bot]

Response from ADK Triaging Agent

Hello @YouFoxGirl, thank you for creating this PR!

To help reviewers evaluate your contribution, could you please provide a "testing plan" section in your PR description explaining how you've tested these changes?

Also, for bug fixes, we require an associated GitHub issue. If one doesn't exist, could you please create one and link it to this PR?

This information will help us review your PR more efficiently. Thanks!

[rohityan]

Hi @YouFoxGirl , Thank you for your contribution! It appears you haven't yet signed the Contributor License Agreement (CLA). Please visit https://cla.developers.google.com/ to complete the signing process. Once the CLA is signed, we'll be able to proceed with the review of your PR. Thank you!