Major rework: multi-user accounts (register/login, per-user data isolation), new layout with sidebar/dashboard/profile menu, matrix phase view with collapsible category columns, life timeline with ages per phase, live budget capping, collapsible transitions, mobile support

src/lib/calculations.ts

@@ -59,6 +59,16 @@ export interface PhaseComputed {
   endWealthReal: number;
   yearlyNominal: number[]; // Laenge durationYears, Werte am Ende von Jahr 1..durationYears
   yearlyReal: number[];
+  // Alter der Personen zu Beginn und am Ende dieser Phase (Grundprofil-Alter +
+  // kumulierte Dauer der Vorphasen).
+  ages: PersonAgeRange[];
+}
+
+export interface PersonAgeRange {
+  personId: string;
+  role: string; // PERSON_A | PERSON_B
+  startAge: number;
+  endAge: number;
 }
 
 export interface PlanComputed {
@@ -136,8 +146,16 @@ function computeRetirement(
 function computePhase(
   phase: PhaseInput,
   household: HouseholdInput,
-  cumulativeInflationStart: number
+  cumulativeInflationStart: number,
+  yearsBeforePhase: number
 ): PhaseComputed {
+  const ages: PersonAgeRange[] = household.persons.map((p) => ({
+    personId: p.id,
+    role: p.role,
+    startAge: p.age + yearsBeforePhase,
+    endAge: p.age + yearsBeforePhase + phase.durationYears,
+  }));
+
   const incomeFromEntries = phase.incomeEntries.reduce((sum, e) => sum + e.amount, 0);
   const expenseTotal = phase.expenseEntries.reduce((sum, e) => sum + e.amount, 0);
   const retirement = computeRetirement(household, phase);
@@ -241,6 +259,7 @@ function computePhase(
     endWealthReal: endWealthNominal / cumulativeInflationEnd,
     yearlyNominal,
     yearlyReal,
+    ages,
   };
 }
 
@@ -248,10 +267,12 @@ export function computePlan(plan: PlanInput, household: HouseholdInput): PlanCom
   const orderedPhases = [...plan.phases].sort((a, b) => a.sequenceNumber - b.sequenceNumber);
 
   let cumulativeInflation = 1;
+  let yearsBefore = 0;
   const phases: PhaseComputed[] = [];
   for (const phase of orderedPhases) {
-    const computed = computePhase(phase, household, cumulativeInflation);
+    const computed = computePhase(phase, household, cumulativeInflation, yearsBefore);
     cumulativeInflation = computed.cumulativeInflationEnd;
+    yearsBefore += phase.durationYears;
     phases.push(computed);
   }