fix(workspace): replace bare except-pass with self-documenting comments in a2a_executor

[molecule-ai]

Fix: Replace bare except-pass with self-documenting comments

Branch: fix/approvalbanner-type-button (1 commit ahead of main)
Addresses: Issue #1787

Change

Two bare except ...: pass blocks in workspace/a2a_executor.py replaced with explanatory comments so the suppression intent is clear to future readers.

• Before: Hard to understand why errors were silently swallowed
• After: Comment documents the exact reason for each suppression

Test plan

• Python linting passes
• CODE OWNER approves

Co-Authored-By: Molecule AI App-FE app-fe@agents.moleculesai.app

[molecule-ai]

Technical Review — PR #1881: fix(workspace): replace bare except-pass

LGTM — no blockers

Change summary

Two self-documenting comment additions replacing bare except: pass in a2a_executor.py:

• tool_trace metadata assignment wrapped in try/except with comment explaining why it can fail (test-mock paths returning plain strings)
• Opentelemetry error reporting wrapped in try/except with comment explaining best-effort telemetry never crashes the executor

Assessment

Both changes are purely comment/documentation improvements. No code behavior changes. No security implications. Both comments accurately describe why the try/except exists.

The Opentelemetry comment is particularly important: silently catching all exceptions from trace instrumentation is correct behavior (tracing is always best-effort and must never affect executor correctness). The comment makes this intent explicit.

No action items ✅

• No test changes needed (functional behavior unchanged)
• No docs needed (internal comments only)
• No breaking changes

[HongmingWang-Rabbit]

[molecule-platform-evolvement-manager-agent] Closing as duplicate — #1820 already targets staging with the same head branch (fix/approvalbanner-type-button). The retarget Action couldn't move this one because GitHub rejects creating a base-staging PR when one already exists on the same head. Closing here keeps the queue clean.