Brummel
cbb072d0cc
When an LLM analysis fails, a `.analysis_failed.json` marker is created. If no document exists yet and the auto-trigger is blocked by this marker, the case page must display a banner. This banner provides the failure reason and a button to retry the analysis, ensuring users are not left in a dead-end state. The `read_failure_marker` function is made public to allow the web layer to access this failure information. The `CasePageTemplate` is updated to include `analysis_failed` data, which conditionally renders the new `.failure-banner` HTML. This change prevents cases from becoming unrecoverable due to transient LLM errors.