lib(renderer): add safeJson helper; migrate 6 JSON.parse try/catch call sites

src/renderer/components/execution/SocialDraftPreview.tsx

@@ -1,6 +1,7 @@
 import { Clock, Link as LinkIcon } from "@phosphor-icons/react"
 import { platformConfig } from "../social/social-config"
 import type { SocialPlatform } from "@shared/types"
+import { safeJson } from "../../lib/safe-json"
 
 const PLATFORM_CHAR_LIMITS: Record<string, number> = {
   twitter: 280,
@@ -26,19 +27,16 @@ interface DraftPayload {
 }
 
 function parseDraft(payloadJson: string): DraftPayload | null {
-  try {
-    const parsed = JSON.parse(payloadJson)
-    if (parsed && typeof parsed === "object" && !Array.isArray(parsed)) {
-      return {
-        content: typeof parsed.content === "string" ? parsed.content : "",
-        mediaUrls: Array.isArray(parsed.mediaUrls) ? parsed.mediaUrls : [],
-        scheduledAt: typeof parsed.scheduledAt === "string" ? parsed.scheduledAt : null,
-        socialAccountId: typeof parsed.socialAccountId === "string" ? parsed.socialAccountId : "",
-        platform: typeof parsed.platform === "string" ? parsed.platform : "other",
-      }
-    }
-  } catch { /* invalid JSON */ }
-  return null
+  const parsed = safeJson<unknown>(payloadJson, null)
+  if (!parsed || typeof parsed !== "object" || Array.isArray(parsed)) return null
+  const obj = parsed as Record<string, unknown>
+  return {
+    content: typeof obj.content === "string" ? obj.content : "",
+    mediaUrls: Array.isArray(obj.mediaUrls) ? (obj.mediaUrls as string[]) : [],
+    scheduledAt: typeof obj.scheduledAt === "string" ? obj.scheduledAt : null,
+    socialAccountId: typeof obj.socialAccountId === "string" ? obj.socialAccountId : "",
+    platform: typeof obj.platform === "string" ? obj.platform : "other",
+  }
 }
 
 function formatScheduledDate(isoDate: string): string {

src/renderer/components/execution/approval-inspector/useApprovalPayload.ts

@@ -1,18 +1,15 @@
 import { useMemo } from "react"
 import type { ApprovalRecord } from "@shared/types"
+import { safeJson } from "../../../lib/safe-json"
 
 export function useApprovalPayload(approval: ApprovalRecord): Record<string, unknown> | null {
   return useMemo(() => {
     if (!approval.payloadJson) return null
-    try {
-      const parsed = JSON.parse(approval.payloadJson)
-      if (parsed && typeof parsed === "object" && !Array.isArray(parsed)) {
-        return parsed as Record<string, unknown>
-      }
-      return null
-    } catch {
-      return null
+    const parsed = safeJson<unknown>(approval.payloadJson, null)
+    if (parsed && typeof parsed === "object" && !Array.isArray(parsed)) {
+      return parsed as Record<string, unknown>
     }
+    return null
   }, [approval.payloadJson])
 }
 

src/renderer/components/execution/execution-utils.tsx

@@ -2,6 +2,7 @@ import type { ApprovalRecord } from "@shared/types"
 import {
   Robot, CheckSquare, Play, ShieldCheck, Gear, FolderOpen, Key, Target, Briefcase, Buildings,
 } from "@phosphor-icons/react"
+import { safeJson } from "../../lib/safe-json"
 
 export function describeActionError(error: unknown) {
   return error instanceof Error ? error.message : "The action could not be completed."
@@ -9,10 +10,8 @@ export function describeActionError(error: unknown) {
 
 export function parseApprovalPayloadJson(approval: ApprovalRecord): Record<string, unknown> | null {
   if (!approval.payloadJson) return null
-  try {
-    const parsed = JSON.parse(approval.payloadJson)
-    if (parsed && typeof parsed === "object" && !Array.isArray(parsed)) return parsed as Record<string, unknown>
-  } catch { return null }
+  const parsed = safeJson<unknown>(approval.payloadJson, null)
+  if (parsed && typeof parsed === "object" && !Array.isArray(parsed)) return parsed as Record<string, unknown>
   return null
 }