orchestrate SE population synthesis QA loop

SE population QA loop routing handoff:
{
  "country": "SE",
  "cycle": 1,
  "modeler_task": "t_987d9d2d",
  "reviewer_task": "t_33ff07f7",
  "reviewer_depends_on": ["t_987d9d2d"],
  "manager_update_path": "/home/synthestat/workspace/manager_handoffs/manager_updates.md",
  "next_manager_action": "After t_33ff07f7 completes, inspect reviewer metadata.verdict and branch exactly according to the population QA loop: PASS -> final human review/delivery; NEEDS_MODEL_FIX -> modeler fix + reviewer re-review; NEEDS_MORE_SOURCES -> researcher/downloader/modeler/reviewer chain; BLOCKED_INVALID_OUTPUT -> modeler valid-bundle task; exhausted verdicts -> human decision."
}

User added a high-priority local evidence/methodology input for Sweden:

  /home/synthestat/other_synthesis

Main-agent inspection found it exists and contains methodology/plans/lessons/research dirs, but the files are currently unreadable to the Hermes runtime user (owned by jhr:jhr uid/gid 1000 with mode 770; Hermes is synthestat uid/gid 1004). I created modeler task t_20de640c to ingest it before the next SE rerun. That task should either ingest once readable or block with the exact permission fix.

This input should supersede a blind source-search-only branch if it contains the Sweden papers, hierarchical fitting method, and marginal/distribution approach the user described. After ingestion, branch to researchers/downloader only for sources referenced there that are not already catalogued/frozen.

SE manager branch decision held after reviewer verdict:

- Reviewed `t_33ff07f7`: verdict is `NEEDS_MORE_SOURCES`.
- Normal branch would be marginals/distributions researchers -> downloader freeze -> modeler rerun -> reviewer re-review.
- User-supplied `/home/synthestat/other_synthesis` must be ingested first. It may contain Sweden papers, hierarchical fitting method, and source/model routing that supersedes blind source-search tasks.
- Current permission check now shows `/home/synthestat/other_synthesis` as `drwxrwxrwx synthestat:synthestat` and `methodology_report.md` as owner-readable by `synthestat`; ingestion card `t_20de640c` is running.
- Appended management note to `/home/synthestat/workspace/manager_handoffs/manager_updates.md`.

Next unblock condition: after `t_20de640c` completes or blocks, inspect its handoff and branch with the smallest concrete researcher/downloader/modeler/reviewer chain consistent with its findings and the cycle-1 review.

Supervisor: prerequisite local SE methodology ingestion task t_20de640c is now done; unblocking manager to branch from SE cycle-1 NEEDS_MORE_SOURCES using the ingested handoff rather than blind source search.

SE population QA loop branch executed after `t_20de640c` local methodology ingest.

Created task graph:
```json
{
  "country": "SE",
  "cycle": 2,
  "branch_from_reviewer_verdict": "NEEDS_MORE_SOURCES",
  "prior_reviewer_task": "t_33ff07f7",
  "local_methodology_ingest_task": "t_20de640c",
  "manager_update_path": "/home/synthestat/workspace/manager_handoffs/manager_updates.md",
  "tasks": {
    "marginals_research": {
      "task_id": "t_ff30afb9",
      "assignee": "synth-marginals-researcher",
      "parents": ["t_33ff07f7", "t_20de640c"],
      "purpose": "SE SCB DeSO/household/building/geography/hidden marginal target source triage"
    },
    "distribution_research": {
      "task_id": "t_f9075c12",
      "assignee": "synth-distributions-researcher",
      "parents": ["t_33ff07f7", "t_20de640c"],
      "purpose": "SE household/family/assignment/hidden prior evidence and household-prior bundle triage"
    },
    "downloader_freeze": {
      "task_id": "t_1bbf9f63",
      "assignee": "synth-downloader",
      "parents": ["t_ff30afb9", "t_f9075c12"],
      "purpose": "freeze/catalogue selected SE source artifacts with timestamps/checksums/provenance"
    },
    "modeler_cycle2": {
      "task_id": "t_29a0c9c4",
      "assignee": "synth-modeler",
      "parents": ["t_1bbf9f63"],
      "purpose": "build non-toy/full-national-or-stratified-multi-DeSO SE review bundle"
    },
    "reviewer_cycle2": {
      "task_id": "t_66bdf062",
      "assignee": "synth-reviewer",
      "parents": ["t_29a0c9c4"],
      "purpose": "review cycle-2 bundle and compare against cycle-1 findings with loop guard"
    }
  },
  "next_manager_action": "After t_66bdf062 completes, inspect metadata.verdict and branch per population QA loop. Because this is the second SE review cycle after a concrete source branch, require human review if findings are materially similar and no new source/model change is identified."
}
```