refactor(errors): surface 57 deferred catch-and-swallow sites via logger

The earlier sweep cleaned the hot path (worker/runtime/automation/api-
server/ipc core — 59 sites). This pass finishes the deferred long tail:
main/* services, database/* CRUD modules, api-server/* routes, ipc-*
handlers, thread-integration, automation helpers, browser, skills.

Default strategy: catch (error) { logger.warn("[module] context:", ...) }
— preserve current behavior, make the failure visible instead of
silently hidden. Widened 3 logger interface signatures to include warn
where callers only passed info/error previously (thread-helpers,
host-environment-service, ipc-domain-common).

Legitimate boundaries left intact: JSON.parse on untrusted input, DNS
resolver no-records paths, explicit safe* helpers (safeJson, parseJson,
parseTriggerDetail), URL-parse predicates, and `<unserialisable>`
fallbacks inside the prompt-builder summarisers. Each kept catch now
either has a reason in context or is a documented safe* helper.

Tests adjusted only where test-constructed no-op loggers needed a warn
stub (message-dispatch, company-mode-switch, ipc-agent-graph-handlers).

With the earlier pass, AgentCompany no longer has silently-swallowing
catch blocks in main-process or renderer business code.

src/main/api-server/routes-agent-control.ts

@@ -13,7 +13,8 @@ export function registerAgentControlRoutes(server: AgentApiServer) {
     const targetAgent = (() => {
       try {
         return db.getAgent(targetAgentId);
-      } catch {
+      } catch (err) {
+        log.warn(`[api/agent-control] getAgent failed for ${targetAgentId}:`, err instanceof Error ? err.message : String(err));
         return null;
       }
     })();
@@ -52,7 +53,8 @@ export function registerAgentControlRoutes(server: AgentApiServer) {
     let targetAgent;
     try {
       targetAgent = db.getAgent(targetAgentId);
-    } catch {
+    } catch (err) {
+      log.warn(`[api/agent-control] getAgent failed for heartbeat ${targetAgentId}:`, err instanceof Error ? err.message : String(err));
       targetAgent = null;
     }
     if (!targetAgent || targetAgent.companyId !== token.companyId) {

src/main/api-server/routes-agents.ts

@@ -156,7 +156,8 @@ export function registerAgentRoutes(server: AgentApiServer) {
     let agent;
     try {
       agent = db.getAgent(requireParam(params, "agentId"));
-    } catch {
+    } catch (err) {
+      log.warn(`[api/agents] getAgent failed:`, err instanceof Error ? err.message : String(err));
       server.json(res, 404, { error: "Agent not found" });
       return;
     }
@@ -262,7 +263,8 @@ export function registerAgentRoutes(server: AgentApiServer) {
     const connectorRecord = (() => {
       try {
         return db.getConnector(input.connectorId);
-      } catch {
+      } catch (err) {
+        log.warn(`[api/agents] getConnector failed for ${input.connectorId}:`, err instanceof Error ? err.message : String(err));
         return null;
       }
     })();
@@ -305,7 +307,8 @@ export function registerAgentRoutes(server: AgentApiServer) {
       ? (() => {
         try {
           return db.getAgent(resolvedReportsTo).name;
-        } catch {
+        } catch (err) {
+          log.warn(`[api/agents] getAgent failed for manager ${resolvedReportsTo}:`, err instanceof Error ? err.message : String(err));
           return resolvedReportsTo;
         }
       })()

src/main/api-server/routes-meetings.ts

@@ -38,7 +38,8 @@ export function registerMeetingRoutes(server: AgentApiServer) {
           return;
         }
       }
-    } catch {
+    } catch (err) {
+      log.warn(`[api/meetings] participantAgentIds JSON parse failed:`, err instanceof Error ? err.message : String(err));
       server.json(res, 400, { error: "participantAgentIds must be a JSON array of agent ids" });
       return;
     }
@@ -95,7 +96,8 @@ export function registerMeetingRoutes(server: AgentApiServer) {
     if (data.actionItemsJson) {
       try {
         actionItems = JSON.parse(data.actionItemsJson) as Array<{ title?: string; assigneeAgentId?: string; description?: string }>;
-      } catch {
+      } catch (err) {
+        log.warn(`[api/meetings] actionItemsJson parse failed:`, err instanceof Error ? err.message : String(err));
         server.json(res, 400, { error: "actionItemsJson must be valid JSON" });
         return;
       }

src/main/api-server/routes-messages.ts

@@ -1,3 +1,4 @@
+import log from "electron-log/main.js";
 import { agentMessageInputSchema } from "@shared/contracts";
 import { dispatchAgentMessage } from "../message-dispatch";
 import { requireParam, type AgentApiServer } from "./server-core";
@@ -59,7 +60,8 @@ export function registerMessageRoutes(server: AgentApiServer) {
       }
 
       server.json(res, 201, comment);
-    } catch {
+    } catch (err) {
+      log.warn(`[api/messages] addComment failed:`, err instanceof Error ? err.message : String(err));
       server.json(res, 404, { error: "Task not found" });
     }
   });
@@ -71,7 +73,8 @@ export function registerMessageRoutes(server: AgentApiServer) {
         server.json(res, 404, { error: "Task not found" });
         return;
       }
-    } catch {
+    } catch (err) {
+      log.warn(`[api/messages] getTask failed for comments list:`, err instanceof Error ? err.message : String(err));
       server.json(res, 404, { error: "Task not found" });
       return;
     }

src/main/api-server/routes-tasks.ts

@@ -54,7 +54,8 @@ export function registerTaskRoutes(server: AgentApiServer) {
         return;
       }
       server.json(res, 200, task);
-    } catch {
+    } catch (err) {
+      log.warn(`[api/tasks] getTask failed:`, err instanceof Error ? err.message : String(err));
       server.json(res, 404, { error: "Task not found" });
     }
   });
@@ -73,7 +74,8 @@ export function registerTaskRoutes(server: AgentApiServer) {
     let task;
     try {
       task = db.getTask(requireParam(params, "issueId"));
-    } catch {
+    } catch (err) {
+      log.warn(`[api/tasks] getTask failed for checkout:`, err instanceof Error ? err.message : String(err));
       server.json(res, 404, { error: "Task not found" });
       return;
     }

src/main/api-server/routes-work-graph.ts

@@ -1,3 +1,4 @@
+import log from "electron-log/main.js";
 import { z } from "zod";
 import { goalInputSchema, projectInputSchema } from "@shared/contracts";
 import { canManageGoal, canManageProject } from "../agent-permissions";
@@ -102,7 +103,8 @@ export function registerWorkGraphRoutes(server: AgentApiServer) {
       });
       onDomainChanged();
       server.json(res, 200, { ok: true });
-    } catch {
+    } catch (err) {
+      log.warn(`[api/work-graph] Failed to update project:`, err instanceof Error ? err.message : String(err));
       server.json(res, 500, { error: "Failed to update project" });
     }
   });
@@ -187,7 +189,8 @@ export function registerWorkGraphRoutes(server: AgentApiServer) {
       });
       onDomainChanged();
       server.json(res, 200, { ok: true });
-    } catch {
+    } catch (err) {
+      log.warn(`[api/work-graph] Failed to update goal:`, err instanceof Error ? err.message : String(err));
       server.json(res, 500, { error: "Failed to update goal" });
     }
   });
@@ -241,7 +244,8 @@ export function registerWorkGraphRoutes(server: AgentApiServer) {
       });
       onDomainChanged();
       server.json(res, 201, { id });
-    } catch {
+    } catch (err) {
+      log.warn(`[api/work-graph] Invalid sprint data:`, err instanceof Error ? err.message : String(err));
       server.json(res, 400, { error: "Invalid sprint data" });
     }
   });