docs: verify grounded slice for #545

docs/issue-545-verification.md

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+# Issue #545 Verification
+
+## Status: ✅ GROUNDED SLICE ALREADY ON MAIN
+
+Issue #545 describes an intentionally unreachable horizon, not a narrow bugfix. The repo already contains a grounded slice for that horizon on `main`, but the issue remains open because the horizon itself is still unreached by design.
+
+## Mainline evidence
+
+These artifacts are already present on `main` in a fresh clone:
+- `docs/UNREACHABLE_HORIZON_1M_MEN.md`
+- `scripts/unreachable_horizon.py`
+- `tests/test_unreachable_horizon.py`
+
+## What the grounded slice already proves
+
+- the horizon is rendered as a repo-backed report instead of pure aspiration
+- the script computes what is already true, what remains physically impossible, and what direction increases sovereignty
+- the committed report preserves crisis doctrine lines instead of letting throughput fantasies erase the man in the dark
+- the current grounded output is honest that the issue remains open because the underlying horizon is still beyond reach
+
+## Historical evidence trail
+
+- PR #719 first grounded the horizon in a script-backed report
+- issue comment #57028 already points to that grounded slice and explicitly explains why it used `Refs #545` instead of closing language
+- today, the report, script, and regression test are all present on `main` from a fresh clone
+
+## Fresh-clone verification
+
+Commands executed:
+- `python3 -m pytest tests/test_unreachable_horizon.py -q`
+- `python3 -m py_compile scripts/unreachable_horizon.py`
+- `python3 scripts/unreachable_horizon.py`
+
+Observed result:
+- the unreachable-horizon regression tests pass
+- the script compiles cleanly
+- the script renders the committed horizon report with the same grounded sections already present in the repo
+
+## Recommendation
+
+Keep issue #545 open as a compass issue if the intent is to track the horizon itself.
+Use the existing grounded slice on `main` as the current proof artifact.
+This verification PR exists to preserve that evidence trail in-repo so future workers do not rebuild the same horizon packet from scratch.

tests/test_issue_545_verification.py

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+from pathlib import Path
+
+
+def test_issue_545_verification_doc_exists_with_grounded_horizon_evidence() -> None:
+    text = Path("docs/issue-545-verification.md").read_text(encoding="utf-8")
+
+    required_snippets = [
+        "# Issue #545 Verification",
+        "## Status: ✅ GROUNDED SLICE ALREADY ON MAIN",
+        "issue remains open",
+        "docs/UNREACHABLE_HORIZON_1M_MEN.md",
+        "scripts/unreachable_horizon.py",
+        "tests/test_unreachable_horizon.py",
+        "PR #719",
+        "issue comment #57028",
+        "python3 -m pytest tests/test_unreachable_horizon.py -q",
+        "python3 scripts/unreachable_horizon.py",
+    ]
+
+    missing = [snippet for snippet in required_snippets if snippet not in text]
+    assert not missing, missing