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/database/agents-crud.ts

@@ -1,4 +1,5 @@
 import type { DatabaseSync, SQLInputValue } from "node:sqlite";
+import log from "electron-log/main.js";
 import type { AgentRecord, AgentRoleLevel, ConnectorId } from "@shared/types";
 import {
   type ReadAll,
@@ -125,8 +126,8 @@ export function buildAgentCrudMethods(
                 configBefore: beforeConfig,
                 configAfter: afterConfig,
               });
-            } catch {
-              /* Non-fatal: revision recording should never block agent save */
+            } catch (err) {
+              log.warn(`[database/agents] recordConfigRevision failed for agent ${id}:`, err instanceof Error ? err.message : String(err));
             }
           }
         }