Resolve first beta blockers

[Zhortein]

Objective

Resolve any blockers discovered during the first beta smoke test.

Scope

• Review first beta smoke test findings.
• Fix release-blocking issues.
• Create follow-up issues for non-blocking findings.
• Ensure QA and frontend tests remain green.

Release-blocking examples

• installation fails;
• routes fail;
• Stimulus controller fails;
• basic datatable rendering fails;
• Array provider fails;
• Doctrine provider fails;
• actions or bulk actions fail;
• CSRF behavior is broken;
• advanced filters do not apply;
• exports fail;
• modal confirmation prevents normal use;
• CI is not green.

Acceptance criteria

• All first beta blockers are resolved.
• Non-blocking findings are tracked separately.
• make frontendtest passes.
• make qa passes.
• CI is green.