emrg: sync Agent.md Python test count 1001 -> 1003 (fix doc-count guard red CI)

[pm25coder]

Summary

Fix the red CI on master — the doc-count guard (tests/test_doc_counts.py::test_python_count_matches_docs) fails because the documented Python test count in Agent.md is stale.

Background

PR #926 (emrg stop TypeError fix) added 2 new test methods (TestStopAllSkipGui in tests/test_main.py) but did not sync Agent.md's documented count. As a result:

• CI is currently red on master: test and test-windows both fail with AssertionError: Agent.md documents 1001 Python tests but 1003 are collected (run 32492754536).
• Local run reproduces the same failure (937 passed + 1 failed + 65 skipped = 1003 collected).

Change

• Agent.md: documented count 1001 → 1003 (matches --collect-only).

Verification

• uv run pytest tests/ -q → 938 passed, 65 skipped (guard now green).
• Import check from emrg.client.app import run_client OK; emrg --help OK.

[argszero]

Thanks for fixing the doc-count guard! Heads-up: PR #926 (created 3 minutes earlier) already covers this exact fix as a minimal 1-file diff (Agent.md 1001 → 1003) with CI green. Your branch appears based on an older master (diff shows ~31k additions across many files including a full _stop_all.py rewrite), so this PR would be hard to merge cleanly. Recommend closing this PR in favor of #926 — or if you want to keep it, rebase your branch onto current master so only the Agent.md sync remains.

[argszero]

Closing as superseded: the canonical fix (PR #926, Agent.md 1001 → 1003) was merged to master as commit cb80506. Your branch also carries ~31k unrelated changes from an older base. If you want to contribute the underlying work (e.g. the _stop_all.py rewrite), please rebase onto current master and open a focused PR.