feat: schedule page UX improvements + CDT combo price skip

- Move Select Procedures above Check Eligibility in appointment right-click menu
- Show 3 blank service lines by default when opening Select Procedures with no saved procedures
- Fix serviceLines not being preserved when API returns empty procedures list
- CDT combo buttons no longer auto-fill price (only fill codes); user maps price via Map Price button
- Overlap detection in schedule: shorten earlier appointment display span when a later one starts within its range
- Procedures dialog: replace single manual-add row with 3 pre-filled blank rows grid + Add Line / Save Lines buttons

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

apps/Frontend/src/utils/procedureCombosMapping.ts

@@ -33,6 +33,7 @@ export type ApplyOptions = {
   lineDate?: string;
   clearTrailing?: boolean;
   replaceAll?: boolean;
+  skipPrice?: boolean;
 };
 /* ----------------------------- Helpers ----------------------------- */
 
@@ -329,9 +330,8 @@ export function applyComboToForm<T extends ClaimFormLike>(
   // Make sure we have enough rows for the whole combo
   ensureCapacity(next.serviceLines, insertAt + preset.codes.length, lineDate);
 
-  // Age on the specific line date we will set
-  const age = ageOnDate(patientDOB, lineDate);
-  const map = getCodeMap(insuranceSiteKey);
+  const age = options.skipPrice ? 0 : ageOnDate(patientDOB, lineDate);
+  const map = options.skipPrice ? CODE_MAP : getCodeMap(insuranceSiteKey);
 
   for (let j = 0; j < preset.codes.length; j++) {
     const i = insertAt + j;
@@ -340,7 +340,9 @@ export function applyComboToForm<T extends ClaimFormLike>(
     const codeRaw = preset.codes[j];
     if (!codeRaw) continue;
     const code = normalizeCode(codeRaw);
-    const price = getPriceForCodeWithAgeFromMap(map, code, age);
+    const price = options.skipPrice
+      ? new Decimal(0)
+      : getPriceForCodeWithAgeFromMap(map, code, age);
 
     const original = next.serviceLines[i];