refactor(api-server): move agents SQL into db.agents/db.activity/db.approvals methods

Replace seven inline queryAll calls in routes-agents.ts with typed
domain methods. db.agents gains listAgentsForApi, listAgentsForStandup,
listExistingAgentsForHireCheck. db.tasks gains listTasksForStandup.
db.approvals gains listApprovalsForStandup and
listPendingHireApprovalPayloads. db.activity gains listRecentTaskComments
(safe on empty taskIds). All HTTP response projections stay identical.

src/main/database-base.ts

@@ -211,6 +211,9 @@ export class AppDatabaseBase {
   getDirectReports(agentId: string, companyId: string) { return this.agents.getDirectReports(agentId, companyId); }
   getCeoForCompany(companyId: string) { return this.agents.getCeoForCompany(companyId); }
   listActiveAgentsForCompany(companyId: string) { return this.agents.listActiveAgentsForCompany(companyId); }
+  listAgentsForApi(companyId: string) { return this.agents.listAgentsForApi(companyId); }
+  listAgentsForStandup(companyId: string) { return this.agents.listAgentsForStandup(companyId); }
+  listExistingAgentsForHireCheck(companyId: string) { return this.agents.listExistingAgentsForHireCheck(companyId); }
   hasAgentAssignedTasks(agentId: string, companyId: string) { return this.agents.hasAgentAssignedTasks(agentId, companyId); }
   updateAgentStatus(agentId: string, status: string) { return this.agents.updateAgentStatus(agentId, status); }
   isAgentPendingApproval(agentId: string) { return this.agents.isAgentPendingApproval(agentId); }
@@ -244,6 +247,7 @@ export class AppDatabaseBase {
   renewTaskLease(taskId: string, runId: string) { return this.tasks.renewTaskLease(taskId, runId); }
   listAgentTasks(agentId: string, companyId: string, statuses: string[]) { return this.tasks.listAgentTasks(agentId, companyId, statuses); }
   listTasksByStatuses(companyId: string, statuses: string[]) { return this.tasks.listTasksByStatuses(companyId, statuses); }
+  listTasksForStandup(companyId: string) { return this.tasks.listTasksForStandup(companyId); }
   findReusableHeartbeatTask(agentId: string, companyId: string) { return this.tasks.findReusableHeartbeatTask(agentId, companyId); }
   acquireHeartbeatTask(input: { agentId: string; companyId: string; runId: string; workspaceId: string | null; title: string; description: string; priority: string }) { return this.tasks.acquireHeartbeatTask(input); }
   cleanupDuplicateHeartbeatTasks(companyId: string) { return this.tasks.cleanupDuplicateHeartbeatTasks(companyId); }
@@ -297,6 +301,9 @@ export class AppDatabaseBase {
   listApprovalsForTask(taskId: string) { return this.approvalsMod.listApprovalsForTask(taskId); }
   listTasksForApproval(approvalId: string) { return this.approvalsMod.listTasksForApproval(approvalId); }
   linkManyTasksToApproval(approvalId: string, taskIds: string[], companyId: string, linkedByAgentId?: string | null) { this.approvalsMod.linkManyTasksToApproval(approvalId, taskIds, companyId, linkedByAgentId); }
+  listApprovalsForStandup(companyId: string) { return this.approvalsMod.listApprovalsForStandup(companyId); }
+  listPendingHireApprovalPayloads(companyId: string) { return this.approvalsMod.listPendingHireApprovalPayloads(companyId); }
+  listApprovalsForApi(companyId: string, filters: { requestedByAgentId?: string; relatedTaskId?: string; statuses?: string[] | null }) { return this.approvalsMod.listApprovalsForApi(companyId, filters); }
 
   // ─── Workspaces ────────────────────────────────────────────────────────────
 
@@ -406,5 +413,6 @@ export class AppDatabaseBase {
 
   addActivity(input: { companyId: string; actor: string; action: string; entityType: string; entityId: string; detail: string }) { this.activityMod.addActivity(input); }
   addComment(input: { companyId: string; taskId: string; authorAgentId: string | null; authorName: string; body: string }) { return this.activityMod.addComment(input); }
+  listRecentTaskComments(taskIds: string[], sinceIso: string, limit: number) { return this.activityMod.listRecentTaskComments(taskIds, sinceIso, limit); }
   recordConfigRevision(input: { companyId: string; agentId: string; changedKeys: string[]; configBefore: Record<string, unknown>; configAfter: Record<string, unknown>; source?: string; rolledBackFromRevisionId?: string | null; createdByAgentId?: string | null; createdByUserId?: string | null }) { return this.documentsMod.recordConfigRevision(input); }
 }