refactor(database): expose domain modules as public readonly fields

Changes the AppDatabaseBase module slots (tasks, agents, runs, ...)
from protected to public readonly so new call sites can reach them
directly as db.tasks.x / db.agents.x. The 156 pass-through methods on
AppDatabase remain untouched, so all existing callers keep working;
this is the first step of a two-part migration to eventually drop
the pass-through layer.

src/main/database-base.ts

@@ -40,27 +40,30 @@ export class AppDatabaseBase {
   readonly vault: SecretVault;
   protected db: DatabaseSync;
 
-  protected readonly threads: ReturnType<typeof buildThreadMethods>;
-  protected readonly company: ReturnType<typeof buildCompanyMethods>;
-  protected readonly agents: ReturnType<typeof buildAgentMethods>;
-  protected readonly tasks: ReturnType<typeof buildTaskMethods>;
-  protected readonly messages: ReturnType<typeof buildMessageMethods>;
-  protected readonly runs: ReturnType<typeof buildRunMethods>;
-  protected readonly snap: ReturnType<typeof buildSnapshotMethods>;
-  protected readonly settings: ReturnType<typeof buildSettingsMethods>;
-  protected readonly connectorsCrud: ReturnType<typeof buildConnectorMethods>;
-  protected readonly workspacesMod: ReturnType<typeof buildWorkspaceMethods>;
-  protected readonly approvalsMod: ReturnType<typeof buildApprovalMethods>;
-  protected readonly social: ReturnType<typeof buildSocialMethods>;
-  protected readonly activityMod: ReturnType<typeof buildActivityMethods>;
-  protected readonly skills: ReturnType<typeof buildSkillMethods>;
-  protected readonly budget: ReturnType<typeof buildBudgetMethods>;
-  protected readonly entityCrud: ReturnType<typeof buildEntityCrudMethods>;
-  protected readonly documentsMod: ReturnType<typeof buildDocumentMethods>;
-  protected readonly automationMod: ReturnType<typeof buildAutomationMethods>;
-  protected readonly knowledgeMod: ReturnType<typeof buildKnowledgeMethods>;
-  protected readonly wakeup: ReturnType<typeof buildWakeupMethods>;
-  protected readonly backupMod: ReturnType<typeof buildBackupMethods>;
+  // Domain modules. New code should prefer `db.tasks.saveTask(...)` over the
+  // legacy pass-through methods on AppDatabase. Pass-through remains for
+  // back-compat until all call sites migrate.
+  public readonly threads: ReturnType<typeof buildThreadMethods>;
+  public readonly company: ReturnType<typeof buildCompanyMethods>;
+  public readonly agents: ReturnType<typeof buildAgentMethods>;
+  public readonly tasks: ReturnType<typeof buildTaskMethods>;
+  public readonly messages: ReturnType<typeof buildMessageMethods>;
+  public readonly runs: ReturnType<typeof buildRunMethods>;
+  public readonly snap: ReturnType<typeof buildSnapshotMethods>;
+  public readonly settings: ReturnType<typeof buildSettingsMethods>;
+  public readonly connectorsCrud: ReturnType<typeof buildConnectorMethods>;
+  public readonly workspacesMod: ReturnType<typeof buildWorkspaceMethods>;
+  public readonly approvalsMod: ReturnType<typeof buildApprovalMethods>;
+  public readonly social: ReturnType<typeof buildSocialMethods>;
+  public readonly activityMod: ReturnType<typeof buildActivityMethods>;
+  public readonly skills: ReturnType<typeof buildSkillMethods>;
+  public readonly budget: ReturnType<typeof buildBudgetMethods>;
+  public readonly entityCrud: ReturnType<typeof buildEntityCrudMethods>;
+  public readonly documentsMod: ReturnType<typeof buildDocumentMethods>;
+  public readonly automationMod: ReturnType<typeof buildAutomationMethods>;
+  public readonly knowledgeMod: ReturnType<typeof buildKnowledgeMethods>;
+  public readonly wakeup: ReturnType<typeof buildWakeupMethods>;
+  public readonly backupMod: ReturnType<typeof buildBackupMethods>;
 
   constructor(rootDir: string) {
     this.profileDir = rootDir;