Phase 4: corp economy & facilities reads (#33, #20)

Add read-only corp tools: wallets, assets, mining observers, facilities,
starbases — all corp-level (need corp roles). Closes #33 and completes the
remaining corp items of #20.

100 tests, coverage 91%.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

tests/test_corp_economy.py

@@ -0,0 +1,76 @@
+"""Corp economy & facilities tools (auth & ESI mocked)."""
+
+import asyncio
+
+import pytest
+
+from conftest import route
+from familiar import auth, corp_economy
+from familiar.server import mcp
+
+CHARS = [{"character_id": 99, "character_name": "Alpha", "scopes": []}]
+
+
+@pytest.fixture
+def fake_auth(monkeypatch):
+    monkeypatch.setattr(auth, "list_characters", lambda: list(CHARS))
+
+    async def get_auth(cid, **kw):
+        return f"token-{cid}", cid
+
+    monkeypatch.setattr(auth, "get_auth", get_auth)
+    monkeypatch.setattr(auth, "resolve_character", lambda i: 99)
+    return CHARS
+
+
+def test_corp_wallets(mock_esi, fake_auth):
+    fixtures = {
+        "/wallets/": [{"division": 1, "balance": 1000.0}],
+        "/characters/": {"corporation_id": 2000},
+    }
+    mock_esi(lambda r: route(r, fixtures))
+    res = asyncio.run(corp_economy.get_corp_wallets())
+    entry = res["characters"][0]
+    assert entry["corporation_id"] == 2000
+    assert entry["wallets"][0]["balance"] == 1000.0
+
+
+def test_corp_assets_paginated(mock_esi, fake_auth):
+    fixtures = {
+        "/assets/": [{"item_id": 1}, {"item_id": 2}],
+        "/characters/": {"corporation_id": 2000},
+    }
+    mock_esi(lambda r: route(r, fixtures))
+    res = asyncio.run(corp_economy.get_corp_assets())
+    assert res["characters"][0]["count"] == 2
+
+
+def test_corp_mining(mock_esi, fake_auth):
+    fixtures = {
+        "/mining/observers/": [{"observer_id": 5}],
+        "/characters/": {"corporation_id": 2000},
+    }
+    mock_esi(lambda r: route(r, fixtures))
+    res = asyncio.run(corp_economy.get_corp_mining())
+    assert res["characters"][0]["count"] == 1
+
+
+def test_corp_facilities_and_starbases(mock_esi, fake_auth):
+    fixtures = {
+        "/facilities/": [{"facility_id": 1}],
+        "/characters/": {"corporation_id": 2000},
+    }
+    mock_esi(lambda r: route(r, fixtures))
+    res = asyncio.run(corp_economy.get_corp_facilities())
+    assert res["characters"][0]["count"] == 1
+
+
+def test_corp_economy_tools_registered():
+    tools = {t.name for t in asyncio.run(mcp.list_tools())}
+    assert {
+        "get_corp_wallets",
+        "get_corp_assets",
+        "get_corp_mining",
+        "get_corp_facilities",
+        "get_corp_starbases",
+    } <= tools