Decode git forge content responses for agents

tests/test_integrations_api_call_truncation.py

@@ -4,6 +4,7 @@ Covers:
   (a) Large JSON list response -> sentinel appended, valid JSON returned
   (b) Small response -> returned unchanged, no truncation
 """
+import base64
 import json
 import sys
 import os
@@ -72,7 +73,7 @@ def _make_response(json_data, status=200):
     return resp
 
 
-async def _call(json_data, status=200):
+async def _call(json_data, status=200, *, integration=None, path="/items"):
     mock_resp = _make_response(json_data, status)
 
     mock_client = AsyncMock()
@@ -81,13 +82,13 @@ async def _call(json_data, status=200):
     mock_client.request = AsyncMock(return_value=mock_resp)
 
     with (
-        patch.object(integrations, "_find_integration", return_value=DUMMY_INTEGRATION),
+        patch.object(integrations, "_find_integration", return_value=integration or DUMMY_INTEGRATION),
         patch("httpx.AsyncClient", return_value=mock_client),
         # api.example.com doesn't resolve; the SSRF guard would fail closed.
         # These tests are about truncation, so stub the guard open.
         patch("src.url_safety.check_outbound_url", return_value=(True, "ok")),
     ):
-        return await integrations.execute_api_call("test_integ", "GET", "/items")
+        return await integrations.execute_api_call("test_integ", "GET", path)
 
 
 async def _call_with_integration(integration, path="/items"):
@@ -230,6 +231,32 @@ async def test_small_json_dict_not_truncated():
     assert "_truncated" not in parsed
 
 
+@pytest.mark.asyncio
+async def test_gitea_contents_response_decodes_base64_and_omits_raw_blob():
+    text = 'APP_VERSION = "1.0.1"\n'
+    payload = {
+        "name": "constants.py",
+        "path": "src/constants.py",
+        "encoding": "base64",
+        "content": base64.b64encode(text.encode("utf-8")).decode("ascii"),
+    }
+    integration = {**DUMMY_INTEGRATION, "preset": "gitea"}
+
+    result = await _call(
+        payload,
+        integration=integration,
+        path="/api/v1/repos/MrSphay/odysseus/contents/src/constants.py",
+    )
+
+    assert result.get("exit_code") == 0
+    body = result["output"].split(chr(10), 1)[1]
+    parsed = json.loads(body)
+    assert parsed["decoded_content"] == text
+    assert parsed["decoded_truncated"] is False
+    assert parsed["content_omitted"] is True
+    assert "content" not in parsed
+
+
 @pytest.mark.asyncio
 async def test_list_truncation_respects_limit_including_sentinel():
     """After list truncation the total serialized body must not exceed 12000 chars,