Implement local SQLite backend and reactive UI

apps/web/src/lib/constants.ts

@@ -1,4 +1,4 @@
-import type { Alert, Catalyst, EarningsSchedule, ExportRecord, Filing, Holding, Risk, Screen } from "@mosaiciq/contracts/rpc";
+import type { Screen } from "@mosaiciq/contracts/rpc";
 
 export const screens: Screen[] = ["home", "workspace", "model", "memo", "agents"];
 
@@ -26,55 +26,6 @@ export const agentCatalog: Array<[string, string, string, string]> = [
   ["qa", "Model QA Agent", "Formula auditing, balance sheet checks, sanity tests", "cross-cutting"]
 ];
 
-export const extraHoldings: Holding[] = [
-  { ticker: "BJ", name: "BJ's Wholesale Club", price: 84.2, changePct: 0.4, weight: 8 },
-  { ticker: "KR", name: "Kroger Co", price: 62.1, changePct: -0.6, weight: 5 },
-  { ticker: "DG", name: "Dollar General", price: 78.5, changePct: 1.5, weight: 4 }
-];
-
-export const demoCatalysts: Catalyst[] = [
-  { id: "cat-1", date: "2026-06-05", event: "Q3 FY25 Earnings", impact: "high", thesisRelevance: "supports", source: "[4]" },
-  { id: "cat-2", date: "2026-07-15", event: "Executive member update", impact: "medium", thesisRelevance: "supports", source: "[2]" },
-  { id: "cat-3", date: "2026-08-01", event: "Annual membership fee review", impact: "high", thesisRelevance: "neutral", source: "[1]" },
-  { id: "cat-4", date: "2026-09-10", event: "New warehouse openings (Q4)", impact: "low", thesisRelevance: "supports", source: "[1]" }
-];
-
-export const demoAlerts: Alert[] = [
-  { id: "alert-1", companyId: "cost", timestamp: "2026-05-12T08:30:00Z", type: "earnings_surprise", description: "Q2 FY25 earnings beat (+7.5% comp)", thesisImpact: "positive", status: "new", targetSection: "thesis" },
-  { id: "alert-2", companyId: "cost", timestamp: "2026-05-12T06:00:00Z", type: "filing", description: "New 8-K: Executive compensation update", thesisImpact: "neutral", status: "new" },
-  { id: "alert-3", companyId: "wmt", timestamp: "2026-05-11T14:00:00Z", type: "peer_event", description: "WMT announces price investment in grocery", thesisImpact: "negative", status: "reviewed" },
-  { id: "alert-4", companyId: "cost", timestamp: "2026-05-11T10:00:00Z", type: "price_move", description: "COST +2.1% on heavy volume", thesisImpact: "positive", status: "reviewed" }
-];
-
-export const demoRisks: Risk[] = [
-  { id: "risk-1", companyId: "cost", risk: "Amazon enters warehouse club segment", category: "competitive", severity: "high", likelihood: "low", mitigation: "Costco's 93% renewal rate creates switching costs", status: "open" },
-  { id: "risk-2", companyId: "cost", risk: "Wage inflation compresses operating margin", category: "financial", severity: "medium", likelihood: "high", mitigation: "Automation and productivity offset 40-60% of wage pressure", status: "open" },
-  { id: "risk-3", companyId: "cost", risk: "Membership fee increase delayed beyond FY26", category: "financial", severity: "medium", likelihood: "medium", mitigation: "Fee income growth from executive tier conversion", status: "mitigated" },
-  { id: "risk-4", companyId: "cost", risk: "Regulatory pressure on merchandise sourcing", category: "regulatory", severity: "low", likelihood: "low", mitigation: "Diversified supply chain across 14 countries", status: "accepted" },
-  { id: "risk-5", companyId: "cost", risk: "E-commerce disruption of warehouse model", category: "competitive", severity: "medium", likelihood: "medium", mitigation: "Costco.com growth and Instacart partnership", status: "open" },
-  { id: "risk-6", companyId: "cost", risk: "Valuation compression on growth deceleration", category: "financial", severity: "high", likelihood: "medium", mitigation: "High-single-digit earnings growth supports premium", status: "open" }
-];
-
-export const demoEarnings: EarningsSchedule[] = [
-  { id: "earn-1", companyId: "cost", quarter: "Q3 FY25", expectedDate: "2026-06-05", timing: "bmo" },
-  { id: "earn-2", companyId: "cost", quarter: "Q4 FY25", expectedDate: "2026-09-25", timing: "bmo" },
-  { id: "earn-3", companyId: "cost", quarter: "Q2 FY25", expectedDate: "2026-03-06", timing: "bmo", actualRevenue: "$62.5B", expectedRevenue: "$61.2B", actualEps: "$4.28", expectedEps: "$4.05" },
-  { id: "earn-4", companyId: "cost", quarter: "Q1 FY25", expectedDate: "2025-12-12", timing: "bmo", actualRevenue: "$60.2B", expectedRevenue: "$59.8B", actualEps: "$4.04", expectedEps: "$3.98" }
-];
-
-export const demoFilings: Filing[] = [
-  { id: "filing-1", companyId: "cost", formType: "10-K", filedDate: "2024-10-10", title: "Annual Report FY2024", keyChanges: "Updated segment reporting, new warehouse commitments ($2.1B)", reviewed: true },
-  { id: "filing-2", companyId: "cost", formType: "10-Q", filedDate: "2026-03-10", title: "Quarterly Report Q2 FY25", keyChanges: "Membership fee income growth, margin expansion", reviewed: true },
-  { id: "filing-3", companyId: "cost", formType: "8-K", filedDate: "2026-05-12", title: "Executive Compensation Update", keyChanges: "New CEO compensation structure", reviewed: false }
-];
-
-export const demoExports: ExportRecord[] = [
-  { id: "export-1", type: "excel", title: "COST Model — Revenue Build FY25-FY27", companyId: "cost", format: "Excel", fileSize: "2.4 MB", status: "complete", createdAt: "2026-05-10T14:30:00Z" },
-  { id: "export-2", type: "pdf", title: "COST Investment Memo — Draft", companyId: "cost", format: "PDF", fileSize: "1.8 MB", status: "complete", createdAt: "2026-05-09T16:00:00Z" },
-  { id: "export-3", type: "ppt", title: "COST IC Presentation", companyId: "cost", format: "PowerPoint", fileSize: "4.2 MB", status: "processing", createdAt: "2026-05-12T09:00:00Z" },
-  { id: "export-4", type: "pdf", title: "Peer Comparison Report", companyId: "cost", format: "PDF", fileSize: "980 KB", status: "complete", createdAt: "2026-05-08T11:00:00Z" }
-];
-
 export const keyboardShortcuts: Array<[string, string, string]> = [
   ["⌘K", "Open agent chat / command bar", "global"],
   ["⌘F", "Focus search bar", "global"],

apps/web/src/rpcClient.ts

@@ -1,18 +1,17 @@
 import type { RpcClient, RpcMethod, RpcRequestMap } from "../../../packages/contracts/src/rpc";
-import { parseRpcResponse } from "../../../packages/contracts/src/rpcSchemas";
-import { handleMockRpc } from "../../../packages/shared/src/mockRpc";
 
 export const rpc: RpcClient = {
   async call<T extends RpcMethod>(method: T, payload: RpcRequestMap[T]) {
-    const useMockRpc = !window.mosaic;
-    if (useMockRpc) {
-      const result = await handleMockRpc(method, payload);
-      if (process.env.NODE_ENV !== "production" && result.ok) {
-        parseRpcResponse(method, result.data);
-      }
-      return result;
+    if (!window.mosaic) {
+      return {
+        ok: false,
+        error: {
+          code: "INTERNAL_ERROR",
+          message: "Desktop backend unavailable. Run MosaicIQ in the Electron app to use the local SQLite backend."
+        }
+      };
     }
 
-    return window.mosaic!.call(method, payload);
+    return window.mosaic.call(method, payload);
   }
 };