[codex] Harden plugin runtime invocation scope (#6547)

## Thinking Path

> - Paperclip orchestrates AI-agent companies through a company-scoped
control plane.
> - Plugins extend that control plane, but plugin workers still call
back into host APIs.
> - Those worker-to-host calls need the same company boundary guarantees
as normal API routes.
> - Plugin action handlers also need authenticated actor context from
the host instead of trusting caller-supplied params.
> - This pull request hardens plugin bridge/action scope and keeps
plugin operation issues out of normal issue surfaces.
> - The benefit is safer plugin execution with clearer authorization
boundaries and better test coverage.

## What Changed

- Added host-owned invocation context plumbing for nested plugin worker
calls.
- Added actor context to plugin `performAction` calls and test harness
helpers.
- Enforced company invocation scope on worker-to-host calls and filtered
company lists to the active invocation scope.
- Extended plugin action route tests for board and agent actor context,
spoofed company params, and cross-company rejection.
- Extended plugin worker manager coverage for invocation-scope
propagation.
- Filtered typed and legacy plugin operation issue origins from default
issue/inbox lists.

## Verification

- `pnpm --filter @paperclipai/plugin-sdk build`
- `NODE_ENV=test pnpm exec vitest run
packages/plugins/sdk/tests/host-client-factory.test.ts
packages/plugins/sdk/tests/testing-actions.test.ts
server/src/__tests__/plugin-routes-authz.test.ts
server/src/__tests__/plugin-worker-manager.test.ts
server/src/__tests__/issues-service.test.ts`

Note: embedded Postgres issue-service tests reported host-level Postgres
init skip for 47 tests; the non-embedded targeted tests passed.

## Risks

- Medium: plugin host authorization paths are sensitive, and external
plugins may rely on previously loose company params.
- Mitigation: the change only tightens calls when the host attached a
company invocation scope and includes explicit tests for board, agent,
and nested worker calls.

> For core feature work, check [`ROADMAP.md`](ROADMAP.md) first and
discuss it in `#dev` before opening the PR. Feature PRs that overlap
with planned core work may need to be redirected — check the roadmap
first. See `CONTRIBUTING.md`.

## Model Used

- OpenAI GPT-5 Codex via `codex_local`, tool-enabled coding session;
exact context window not exposed by this runtime.

## Checklist

- [x] I have included a thinking path that traces from project context
to this change
- [x] I have specified the model used (with version and capability
details)
- [x] I have checked ROADMAP.md and confirmed this PR does not duplicate
planned core work
- [x] I have run tests locally and they pass
- [x] I have added or updated tests where applicable
- [x] If this change affects the UI, I have included before/after
screenshots
- [x] I have updated relevant documentation to reflect my changes
- [x] I have considered and documented any risks above
- [x] I will address all Greptile and reviewer comments before
requesting merge

server/src/__tests__/issues-service.test.ts

@@ -773,6 +773,8 @@ describeEmbeddedPostgres("issueService.list participantAgentId", () => {
     const normalIssueId = randomUUID();
     const pluginVisibleIssueId = randomUUID();
     const operationIssueId = randomUUID();
+    const typedOperationIssueId = randomUUID();
+    const legacyContentMachineOperationIssueId = randomUUID();
 
     await db.insert(companies).values({
       id: companyId,
@@ -826,12 +828,36 @@ describeEmbeddedPostgres("issueService.list participantAgentId", () => {
         originKind: "plugin:paperclip.missions:operation",
         originId: "mission-alpha:operation-1",
       },
+      {
+        id: typedOperationIssueId,
+        companyId,
+        projectId,
+        title: "Typed plugin operation issue",
+        status: "todo",
+        priority: "medium",
+        assigneeAgentId: agentId,
+        originKind: "plugin:paperclip.missions:operation:evaluation",
+        originId: "mission-alpha:operation-2",
+      },
+      {
+        id: legacyContentMachineOperationIssueId,
+        companyId,
+        projectId,
+        title: "Legacy Content Machine operation issue",
+        status: "todo",
+        priority: "medium",
+        assigneeAgentId: agentId,
+        originKind: "plugin:paperclipai.content-machine:evaluation",
+        originId: "content-machine-operation-1",
+      },
     ]);
 
     const defaultIssueIds = (await svc.list(companyId)).map((issue) => issue.id);
     expect(defaultIssueIds).toContain(normalIssueId);
     expect(defaultIssueIds).toContain(pluginVisibleIssueId);
     expect(defaultIssueIds).not.toContain(operationIssueId);
+    expect(defaultIssueIds).not.toContain(typedOperationIssueId);
+    expect(defaultIssueIds).not.toContain(legacyContentMachineOperationIssueId);
 
     const inboxIssueIds = (await svc.list(companyId, {
       assigneeAgentId: agentId,
@@ -840,17 +866,28 @@ describeEmbeddedPostgres("issueService.list participantAgentId", () => {
     })).map((issue) => issue.id);
     expect(inboxIssueIds).toContain(normalIssueId);
     expect(inboxIssueIds).not.toContain(operationIssueId);
+    expect(inboxIssueIds).not.toContain(typedOperationIssueId);
+    expect(inboxIssueIds).not.toContain(legacyContentMachineOperationIssueId);
 
     await expect(svc.list(companyId, { originKind: "plugin:paperclip.missions:operation" }))
       .resolves.toEqual([expect.objectContaining({ id: operationIssueId })]);
     await expect(svc.list(companyId, { originId: "mission-alpha:operation-1" }))
       .resolves.toEqual([expect.objectContaining({ id: operationIssueId })]);
+    await expect(svc.list(companyId, { originKindPrefix: "plugin:paperclip.missions:operation" }))
+      .resolves.toEqual(expect.arrayContaining([
+        expect.objectContaining({ id: operationIssueId }),
+        expect.objectContaining({ id: typedOperationIssueId }),
+      ]));
 
     const projectIssueIds = (await svc.list(companyId, { projectId })).map((issue) => issue.id);
     expect(projectIssueIds).toContain(operationIssueId);
+    expect(projectIssueIds).toContain(typedOperationIssueId);
+    expect(projectIssueIds).toContain(legacyContentMachineOperationIssueId);
 
     const advancedIssueIds = (await svc.list(companyId, { includePluginOperations: true })).map((issue) => issue.id);
     expect(advancedIssueIds).toContain(operationIssueId);
+    expect(advancedIssueIds).toContain(typedOperationIssueId);
+    expect(advancedIssueIds).toContain(legacyContentMachineOperationIssueId);
   });
 
   it("excludes plugin operation issues from unread inbox counts", async () => {