fix(profiler): chunk eth_getLogs into <=10k-block windows

Public Polygon RPC providers (publicnode, ankr, llamarpc) cap eth_getLogs
at 10_000 blocks per request. The funding tracer was calling get_logs
with from_block=0 / to_block="latest", so every funding chain trace
failed in production with:

    {'code': -32701, 'message': 'exceed maximum block range: 10000'}

Resolve the symbolic range to concrete bounds (default lookback ~30 days
of Polygon blocks) and walk the window in 9_000-block chunks, oldest
first, stopping early once `limit` matches are gathered. Walking
oldest-first preserves the "first transfer" semantics the funding tracer
already relies on.

Includes 4 new tests:
- chunks_large_ranges: regression guard that no single window exceeds
  the cap
- stops_when_limit_hit_mid_walk: short-circuits once enough hits
- skips_failing_chunk: a flaky window doesn't tank the whole trace
- resolves_latest_via_block_number: from_block=0 + to_block="latest"
  resolves to the last max_lookback_blocks

The 3 pre-existing _get_transfer_logs tests now pass explicit numeric
ranges so they don't go through the latest-resolution path; coverage of
that path is moved to the new dedicated test.

tests/profiler/test_funding.py

@@ -327,6 +327,10 @@ class TestGetTransferLogs:
         await funding_tracer._get_transfer_logs(
             to_address=TEST_WALLET,
             token_address=USDC_BRIDGED,
+            # Explicit numeric range so we stay inside one chunk and skip
+            # the "latest" → block_number resolution path.
+            from_block=1,
+            to_block=8_000,
         )
 
         mock_w3.eth.get_logs.assert_called_once()
@@ -338,6 +342,9 @@ class TestGetTransferLogs:
         assert call_args["topics"][1] is None  # from (any)
         # to address should be padded to 32 bytes
         assert call_args["topics"][2].endswith(TEST_WALLET.lower().replace("0x", ""))
+        # And the chunk bounds match what we asked for.
+        assert call_args["fromBlock"] == 1
+        assert call_args["toBlock"] == 8_000
 
     @pytest.mark.asyncio
     async def test_get_transfer_logs_respects_limit(
@@ -355,6 +362,8 @@ class TestGetTransferLogs:
             to_address=TEST_WALLET,
             token_address=USDC_BRIDGED,
             limit=3,
+            from_block=1,
+            to_block=8_000,
         )
 
         assert len(result) == 3
@@ -374,10 +383,142 @@ class TestGetTransferLogs:
         await funding_tracer._get_transfer_logs(
             to_address=TEST_WALLET,
             token_address=USDC_BRIDGED,
+            from_block=1,
+            to_block=8_000,
         )
 
         mock_fallback.eth.get_logs.assert_called_once()
 
+    @pytest.mark.asyncio
+    async def test_get_transfer_logs_chunks_large_ranges(
+        self,
+        funding_tracer: FundingTracer,
+        mock_polygon_client: MagicMock,
+    ) -> None:
+        """Ranges wider than chunk_size are split into multiple eth_getLogs calls.
+
+        This is the regression guard for the publicnode 10_000-block cap that
+        was rejecting every funding trace before chunking landed.
+        """
+        mock_w3 = MagicMock()
+        mock_w3.eth.get_logs = AsyncMock(return_value=[])
+        mock_polygon_client._w3 = mock_w3
+
+        # 25_000 blocks at 9_000-per-chunk → 3 calls (9000 + 9000 + 7001).
+        await funding_tracer._get_transfer_logs(
+            to_address=TEST_WALLET,
+            token_address=USDC_BRIDGED,
+            from_block=1_000_000,
+            to_block=1_025_000,
+        )
+
+        assert mock_w3.eth.get_logs.call_count == 3
+        windows = [call[0][0] for call in mock_w3.eth.get_logs.call_args_list]
+        assert windows[0]["fromBlock"] == 1_000_000
+        assert windows[0]["toBlock"] == 1_008_999
+        assert windows[1]["fromBlock"] == 1_009_000
+        assert windows[1]["toBlock"] == 1_017_999
+        assert windows[2]["fromBlock"] == 1_018_000
+        assert windows[2]["toBlock"] == 1_025_000
+        # No window exceeds the chunk size — that's what RPC providers reject.
+        for win in windows:
+            assert win["toBlock"] - win["fromBlock"] + 1 <= 9_000
+
+    @pytest.mark.asyncio
+    async def test_get_transfer_logs_stops_when_limit_hit_mid_walk(
+        self,
+        funding_tracer: FundingTracer,
+        mock_polygon_client: MagicMock,
+    ) -> None:
+        """Walking should stop as soon as ``limit`` matches are gathered."""
+        mock_w3 = MagicMock()
+        # First chunk yields 5 logs, more than the limit, so subsequent chunks
+        # must not be queried.
+        mock_w3.eth.get_logs = AsyncMock(return_value=[MagicMock() for _ in range(5)])
+        mock_polygon_client._w3 = mock_w3
+
+        result = await funding_tracer._get_transfer_logs(
+            to_address=TEST_WALLET,
+            token_address=USDC_BRIDGED,
+            limit=2,
+            from_block=1_000_000,
+            to_block=1_025_000,
+        )
+
+        assert len(result) == 2
+        mock_w3.eth.get_logs.assert_called_once()
+
+    @pytest.mark.asyncio
+    async def test_get_transfer_logs_skips_failing_chunk(
+        self,
+        funding_tracer: FundingTracer,
+        mock_polygon_client: MagicMock,
+    ) -> None:
+        """A flaky chunk must not abort the whole trace — we move on."""
+        mock_w3 = MagicMock()
+        good_log = MagicMock()
+        responses: list[Any] = [
+            RuntimeError("RPC hiccup"),
+            [good_log],
+        ]
+
+        async def fake_get_logs(_params: dict[str, Any]) -> list[Any]:
+            outcome = responses.pop(0)
+            if isinstance(outcome, BaseException):
+                raise outcome
+            return outcome
+
+        mock_w3.eth.get_logs = AsyncMock(side_effect=fake_get_logs)
+        mock_polygon_client._w3 = mock_w3
+
+        result = await funding_tracer._get_transfer_logs(
+            to_address=TEST_WALLET,
+            token_address=USDC_BRIDGED,
+            from_block=1_000_000,
+            to_block=1_018_000,  # forces 3 chunks; we exercise chunks 1+2
+        )
+
+        # The error chunk is skipped; the second chunk contributes one log.
+        assert result == [dict(good_log)]
+        assert mock_w3.eth.get_logs.call_count >= 2
+
+    @pytest.mark.asyncio
+    async def test_get_transfer_logs_resolves_latest_via_block_number(
+        self,
+        funding_tracer: FundingTracer,
+        mock_polygon_client: MagicMock,
+    ) -> None:
+        """``to_block='latest'`` should resolve via ``eth.block_number``.
+
+        And ``from_block=0`` should not become a full-history scan — it must
+        be clamped to ``latest - max_lookback_blocks``.
+        """
+
+        async def _block_number_coro() -> int:
+            return 5_000
+
+        mock_eth = MagicMock()
+        mock_eth.get_logs = AsyncMock(return_value=[])
+        # Property-style awaitable: web3.py exposes block_number as a property
+        # returning a coroutine, so each access must yield a fresh awaitable.
+        type(mock_eth).block_number = property(  # type: ignore[misc]
+            lambda self: _block_number_coro()
+        )
+        mock_w3 = MagicMock()
+        mock_w3.eth = mock_eth
+        mock_polygon_client._w3 = mock_w3
+
+        await funding_tracer._get_transfer_logs(
+            to_address=TEST_WALLET,
+            token_address=USDC_BRIDGED,
+        )
+
+        # block_number=5000 < chunk_size, so it's one chunk that bottoms at 0.
+        mock_eth.get_logs.assert_called_once()
+        call_args = mock_eth.get_logs.call_args[0][0]
+        assert call_args["fromBlock"] == 0
+        assert call_args["toBlock"] == 5_000
+
 
 class TestLogToFundingTransfer:
     """Tests for _log_to_funding_transfer method."""