feat: overhaul session documentation, PSA notes, and client communications

- Reformat PSA resolution/escalation notes: clean single-line header,
  steps with engineer responses inline, remove duplicate timing blocks,
  remove AI confidence section, add follow-up recommendations
- Standardize time display to decimal hours (e.g. 0.25 hrs) across all
  note formatters and status update context
- Add follow_up_recommendations to SessionDocumentation schema and
  surface in SessionDocView; extracted from resolution suggestion steps
- Add _build_what_we_know() helper: uses session.evidence_items when
  cockpit branch merges, falls back to deriving findings from steps
- Fix option label lookup in generate_status_update (was passing raw
  machine values to AI instead of human-readable labels)
- Add 'What We Know' section to status update ticket notes prompt
- Improve _build_session_context in resolution_output_generator to
  include intake text and full step details instead of truncated chat
- Add request_info audience type: client-facing information request
  that skips the length step and generates a numbered question list
- Improve client_update and email_draft prompts with per-context
  guidance (status/resolution/escalation) and fix escalation subject
  line from 'Specialist Review' to 'Specialist Assistance'

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

frontend/src/components/flowpilot/SessionDocView.tsx

@@ -187,6 +187,23 @@ export function SessionDocView({
         ))}
       </div>
 
+      {/* Follow-up recommendations */}
+      {documentation.follow_up_recommendations.length > 0 && (
+        <div className="card-flat p-3 sm:p-4">
+          <h4 className="font-sans text-xs text-[0.625rem] uppercase tracking-wider text-muted-foreground mb-2">
+            Follow-up
+          </h4>
+          <ul className="space-y-1">
+            {documentation.follow_up_recommendations.map((rec, i) => (
+              <li key={i} className="flex items-start gap-2 text-sm text-foreground">
+                <span className="mt-1.5 h-1.5 w-1.5 shrink-0 rounded-full bg-primary" />
+                {rec}
+              </li>
+            ))}
+          </ul>
+        </div>
+      )}
+
       {/* Rating */}
       {onRate && (
         <div className="card-flat p-3 sm:p-4 text-center">