Add proof-measure client + Gitea PyPI publish; bump to 0.4.0

proof-measure is a separate, public, unauthenticated Dragonchain service. Adds:
- UnauthenticatedClient: HMAC-free transport mirroring Client (session
  injection, allow_redirects=False, from_dict decoding).
- ProofMeasureClient: get_security / report / health; default base URL
  https://proof-measure.dragonchain.com. Standalone (ProofMeasureClient()) and
  via DragonchainSDK.proof_measure.
- Proof-measure dataclass models (decimals as strings, timestamps as int).
- .gitea/workflows/publish.yml: build + twine upload to the Gitea PyPI registry
  on release (the SDK had no publish workflow before).

Also fixes 3 pre-existing failing tests: _FakeSession.request didn't accept the
allow_redirects kwarg the client now passes (added by the prior redirect change),
so the suite was red at HEAD.

prime_sdk/__init__.py

@@ -71,11 +71,24 @@ from .models import (
     TransactionTypeCreateResponse,
     VerificationBlock,
 )
+from .models import (
+    AnchorSecurity,
+    HashPower,
+    HealthResponse,
+    RawMeasure,
+    ReportAnchorInput,
+    ReportRequest,
+    SecurityResult,
+    TransactionReport,
+)
+from .proof_measure import DEFAULT_BASE_URL as PROOF_MEASURE_DEFAULT_BASE_URL
+from .proof_measure import ProofMeasureClient
 from .system import SystemClient
 from .transaction import TransactionClient
 from .transaction_type import TransactionTypeClient
+from .unauthenticated_client import UnauthenticatedClient
 
-__version__ = "0.2.0"
+__version__ = "0.4.0"
 
 
 class DragonchainSDK:
@@ -111,6 +124,10 @@ class DragonchainSDK:
         self.contract = ContractClient(self._client)
         self.block = BlockClient(self._client)
         self.system = SystemClient(self._client)
+        # proof-measure is a separate, unauthenticated public service; this
+        # handle targets its default public endpoint. For a custom endpoint
+        # construct a ``ProofMeasureClient`` directly.
+        self.proof_measure = ProofMeasureClient()
 
     def get_client(self) -> Client:
         """Return the underlying HTTP client (advanced use)."""
@@ -128,6 +145,9 @@ __all__ = [
     "SystemClient",
     "TransactionClient",
     "TransactionTypeClient",
+    "ProofMeasureClient",
+    "UnauthenticatedClient",
+    "PROOF_MEASURE_DEFAULT_BASE_URL",
     # models
     "Block",
     "BlockHeader",
@@ -155,4 +175,13 @@ __all__ = [
     "TransactionTypeCreateRequest",
     "TransactionTypeCreateResponse",
     "VerificationBlock",
+    # proof-measure models
+    "RawMeasure",
+    "SecurityResult",
+    "ReportAnchorInput",
+    "ReportRequest",
+    "AnchorSecurity",
+    "HashPower",
+    "TransactionReport",
+    "HealthResponse",
 ]