build: consume published Specs 0.2 temporal contract

docs/user-guide/features.md

@@ -87,11 +87,9 @@ raise `ValueError` before feature execution.
 ### Calendar and bar grid
 
 The calendar-aware default targets the next minor version (0.2), separate from the 0.1.7 patch.
-Development and qualification currently pin the merged Specs v2 implementation at
-`701bde68744035050ede386efce498234c661c21`. The same immutable Git dependency is declared
-in built package metadata; published Specs 0.1.5 does not provide this API. Before a PyPI
-release, replace that source dependency with the verified published Specs version containing
-the v2 contract and repeat installed-package qualification.
+The shared temporal contract requires published `ml4t-specs>=0.2.0,<0.3.0`, also declared
+in built package metadata. Specs 0.1.5 does not provide this API. Engineer's development
+branch uses the published dependency; the temporal migration is not part of the 0.1.7 patch.
 
 Calendar selection
 uses the explicit `calendar` argument, then declared feed metadata, then NYSE. Explicit

pyproject.toml

@@ -8,10 +8,6 @@ build-backend = "hatchling.build"
 [tool.hatch.version]
 source = "vcs"
 
-[tool.hatch.metadata]
-# Qualification pin until the shared time-contract v2 API is published on PyPI.
-allow-direct-references = true
-
 [tool.hatch.build.targets.wheel]
 packages = ["src/ml4t"]
 namespaces = true
@@ -76,7 +72,7 @@ requires-python = ">=3.12,<3.15"
 
 # Core dependencies
 dependencies = [
-    "ml4t-specs @ git+https://github.com/ml4t/specs.git@701bde68744035050ede386efce498234c661c21",
+    "ml4t-specs>=0.2.0,<0.3.0",
 
     # Data processing (Polars-first)
     "polars>=0.20.0",

tests/test_release_policy.py

@@ -242,7 +242,7 @@ def test_ci_audits_core_and_complete_locked_environments() -> None:
     assert "complete.txt" in audit
 
 
-def test_core_dependency_uses_bounded_specs_or_immutable_source_for_qualification() -> None:
+def test_core_dependency_requires_published_time_contract_v2() -> None:
     project = tomllib.loads((ROOT / "pyproject.toml").read_text(encoding="utf-8"))
     lock = tomllib.loads((ROOT / "uv.lock").read_text(encoding="utf-8"))
 
@@ -252,17 +252,10 @@ def test_core_dependency_uses_bounded_specs_or_immutable_source_for_qualificatio
         if Requirement(value).name == "ml4t-specs"
     )
     specs = next(package for package in lock["package"] if package["name"] == "ml4t-specs")
-    if requirement.url is None:
-        assert str(requirement.specifier) == "<0.2.0,>=0.1.0"
-        assert specs["version"] in requirement.specifier
-    else:
-        assert re.fullmatch(
-            r"git\+https://github.com/ml4t/specs\.git@[0-9a-f]{40}", requirement.url
-        )
-        commit = requirement.url.rsplit("@", maxsplit=1)[1]
-        assert specs["source"] == {
-            "git": f"https://github.com/ml4t/specs.git?rev={commit}#{commit}"
-        }
+    assert requirement.url is None
+    assert str(requirement.specifier) == "<0.3.0,>=0.2.0"
+    assert specs["version"] in requirement.specifier
+    assert specs["source"] == {"registry": "https://pypi.org/simple"}
 
 
 def test_package_supports_python_312_through_314() -> None: