feat: add initial application structure with configuration, UI components, and state management

stores/scenarios.ts

@@ -0,0 +1,95 @@
+import { defineStore } from "pinia";
+
+export const useScenariosStore = defineStore("scenarios", () => {
+  // Scenario presets
+  const presets = ref({
+    current: {
+      name: "Operate Current Plan",
+      description: "Continue with existing revenue and capacity",
+      settings: {},
+    },
+    quitDayJobs: {
+      name: "Quit Day Jobs",
+      description: "Members leave external work, increase co-op hours",
+      settings: {
+        targetHoursMultiplier: 1.5,
+        externalCoverageReduction: 0.8,
+      },
+    },
+    startProduction: {
+      name: "Start Production",
+      description: "Launch product development phase",
+      settings: {
+        productionCostsIncrease: 2000,
+        effortHoursIncrease: 100,
+      },
+    },
+    sixMonth: {
+      name: "6-Month Plan",
+      description: "Extended planning horizon",
+      settings: {
+        timeHorizonMonths: 6,
+      },
+    },
+  });
+
+  // What-if sliders state
+  const sliders = ref({
+    monthlyRevenue: 12000,
+    paidHoursPerMonth: 320,
+    winRatePct: 70,
+    avgPayoutDelayDays: 30,
+    hourlyWageAdjust: 0,
+  });
+
+  // Selected scenario
+  const activeScenario = ref("current");
+
+  // Computed scenario results (will be calculated by composables)
+  const scenarioResults = computed(() => ({
+    runway: 2.8,
+    monthlyCosts: 8700,
+    cashflowRisk: "medium",
+    recommendations: [],
+  }));
+
+  // Actions
+  function setActiveScenario(scenarioKey) {
+    activeScenario.value = scenarioKey;
+  }
+
+  function updateSlider(key, value) {
+    if (key in sliders.value) {
+      sliders.value[key] = value;
+    }
+  }
+
+  function resetSliders() {
+    sliders.value = {
+      monthlyRevenue: 12000,
+      paidHoursPerMonth: 320,
+      winRatePct: 70,
+      avgPayoutDelayDays: 30,
+      hourlyWageAdjust: 0,
+    };
+  }
+
+  function saveCustomScenario(name, settings) {
+    presets.value[name.toLowerCase().replace(/\s+/g, "")] = {
+      name,
+      description: "Custom scenario",
+      settings,
+    };
+  }
+
+  return {
+    presets: readonly(presets),
+    sliders,
+    activeScenario: readonly(activeScenario),
+    scenarioResults,
+    setActiveScenario,
+    updateSlider,
+    resetSliders,
+    saveCustomScenario,
+  };
+});