Add Formula Library ratings, Job Profitability report, and Quote Revision History improvements

- Formula Library ratings: thumbs up/down per company per formula; toggle on/off; sorts by net score; own formulas not rateable; FormulaLibraryRating entity + migration AddFormulaLibraryRatings
- Job Profitability report: actual labor cost (logged hours x StandardLaborRate) vs powder cost vs billed price per job; gross margin % color-coded; time-tracked-only filter; totals footer
- Quote Revision History: track Total price changes on every save; log Sent/Resent events with recipient email; replace flat table with grouped timeline UI (icons per event type, total-change badge on header)
- Setup Wizard: cap CompletedCount at TotalSteps so old 10-step data no longer shows 10/5
- Formula Library card: fix badge overflow on long titles; add Rate: label to make voting buttons discoverable
- Help docs and AI knowledge base updated for all three features

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

src/PowderCoating.Application/DTOs/Wizard/WizardDtos.cs

@@ -18,7 +18,8 @@ public class WizardProgressDto
     public bool IsStepSkipped(int step) => SkippedSteps.Contains(step);
     public bool IsStepTouched(int step) => IsStepDone(step) || IsStepSkipped(step);
 
-    public int CompletedCount => DoneSteps.Count + SkippedSteps.Count;
+    // Capped at TotalSteps so old step data from a larger wizard doesn't overflow the display.
+    public int CompletedCount => Math.Min(DoneSteps.Count + SkippedSteps.Count, TotalSteps);
     public int ProgressPercent => TotalSteps == 0 ? 0 : (int)Math.Round((double)CompletedCount / TotalSteps * 100);
 }