fix: pin common dep and exclude policymaterializer from frontend codegen

Pin buf.build/redpandadata/common to a specific commit and update
buf.build/gen/go/redpandadata/core to resolve missing admin/v2 types.
Also exclude policymaterializer from frontend generation.

Author: c-julin

backend/go.mod

@@ -8,7 +8,7 @@ require (
 	buf.build/gen/go/bufbuild/registry/protocolbuffers/go v1.36.10-20251027152159-f1066ce064ca.1
 	buf.build/gen/go/redpandadata/common/protocolbuffers/go v1.36.11-20251216164002-601698cfe71d.1
 	buf.build/gen/go/redpandadata/core/connectrpc/go v1.19.1-20251111205446-9c61b5cb371f.2
-	buf.build/gen/go/redpandadata/core/protocolbuffers/go v1.36.11-20260219184720-92d267893f89.1
+	buf.build/gen/go/redpandadata/core/protocolbuffers/go v1.36.11-20260313213909-923579c57f1c.1
 	buf.build/gen/go/redpandadata/otel/protocolbuffers/go v1.36.11-20251216164002-58c749b888d8.1
 	buf.build/go/protovalidate v1.0.1
 	connectrpc.com/connect v1.19.1
@@ -44,7 +44,6 @@ require (
 	github.com/redpanda-data/benthos/v4 v4.56.0
 	github.com/redpanda-data/common-go/api v0.0.0-20260130192523-413455981e59
 	github.com/redpanda-data/common-go/net v0.1.1-0.20240429123545-4da3d2b371f7
-	github.com/redpanda-data/common-go/proto v0.0.0-20260318014216-2bbd72bde0a0
 	github.com/redpanda-data/common-go/rpadmin v0.2.0
 	github.com/redpanda-data/common-go/rpsr v0.1.2
 	github.com/santhosh-tekuri/jsonschema/v5 v5.3.1

backend/go.sum

@@ -12,8 +12,8 @@ buf.build/gen/go/redpandadata/common/protocolbuffers/go v1.36.11-20251216164002-
 buf.build/gen/go/redpandadata/common/protocolbuffers/go v1.36.11-20251216164002-601698cfe71d.1/go.mod h1:3w7EzexwlL6PIFGbbeKZ0yHfUlAmI0aBVzF/QoFb8Cg=
 buf.build/gen/go/redpandadata/core/connectrpc/go v1.19.1-20251111205446-9c61b5cb371f.2 h1:85DyJp3AZBUpMzm8Lu85mb7ugx+PYhHqhEAjcqLdSAY=
 buf.build/gen/go/redpandadata/core/connectrpc/go v1.19.1-20251111205446-9c61b5cb371f.2/go.mod h1:YPSni+Nscq5UQI8MCerb8+KW4oMyEjk/scg/we5fB30=
-buf.build/gen/go/redpandadata/core/protocolbuffers/go v1.36.11-20260219184720-92d267893f89.1 h1:eOjDnUfezsTEC20OQDXH4OQ7IXWcQ7+dgT1e+1ABfU4=
-buf.build/gen/go/redpandadata/core/protocolbuffers/go v1.36.11-20260219184720-92d267893f89.1/go.mod h1:5sjUVquVwNxt3Q/EhE/UW0BBJ5sgPiaVTw8//wxRULI=
+buf.build/gen/go/redpandadata/core/protocolbuffers/go v1.36.11-20260313213909-923579c57f1c.1 h1:wGJKMkeWqxjInInVXMxjlUr7MZ4pNUwE/rzC1q1wt1Y=
+buf.build/gen/go/redpandadata/core/protocolbuffers/go v1.36.11-20260313213909-923579c57f1c.1/go.mod h1:5sjUVquVwNxt3Q/EhE/UW0BBJ5sgPiaVTw8//wxRULI=
 buf.build/gen/go/redpandadata/otel/protocolbuffers/go v1.36.11-20251216164002-58c749b888d8.1 h1:4jqc94IBC9Ea9GaMbmgfhczXZzCkA4ZWfon3/uI3KV0=
 buf.build/gen/go/redpandadata/otel/protocolbuffers/go v1.36.11-20251216164002-58c749b888d8.1/go.mod h1:akvBCH3f6fL10sDu4NppgjHrQITLe1m5YWLt/yiLEKI=
 buf.build/go/protovalidate v1.0.1 h1:Fwmf08OOUuKVeMvEnDmcKxQam4PJc/zFgvVX64BhTms=
@@ -396,8 +396,6 @@ github.com/redpanda-data/common-go/api v0.0.0-20260130192523-413455981e59 h1:eAO
 github.com/redpanda-data/common-go/api v0.0.0-20260130192523-413455981e59/go.mod h1:klAmWfc8Q3hEZk8geFTMu6f2sk3VUKRS7cv/LvB05ig=
 github.com/redpanda-data/common-go/net v0.1.1-0.20240429123545-4da3d2b371f7 h1:MXLdjFdFjOtyuUR4TdVVsqFP8xnru2YDwzH9bJTUr1M=
 github.com/redpanda-data/common-go/net v0.1.1-0.20240429123545-4da3d2b371f7/go.mod h1:UJIi/yUxGOBYXUrfUsOkxfYxcb/ll7mZrwae/i+U2kc=
-github.com/redpanda-data/common-go/proto v0.0.0-20260318014216-2bbd72bde0a0 h1:iZp34QW0+abVYo+XWpxGBn6qLEx2nKp5Bcvd6AjzLiY=
-github.com/redpanda-data/common-go/proto v0.0.0-20260318014216-2bbd72bde0a0/go.mod h1:4TOyhdEvR/hlk0RjHXzmO0hYmWBpGGI1qiFPNv211O4=
 github.com/redpanda-data/common-go/rpadmin v0.2.0 h1:s2MyyY+yq7B17mLjjW17RO81wFlzo856K9IuBpsmvv0=
 github.com/redpanda-data/common-go/rpadmin v0.2.0/go.mod h1:qmu76v7RRKgEXLS3UXxZ8KDpObtSNq6RinOIejJNWzw=
 github.com/redpanda-data/common-go/rpsr v0.1.2 h1:DThUeyfBH8fkL9WoP1sEbRhT2NVV22zmsTpcCtzfusQ=

buf.gen.frontend.yaml

@@ -3,6 +3,8 @@ clean: true
 inputs:
   - directory: proto
   - module: buf.build/redpandadata/common
+    exclude_paths:
+      - redpanda/policymaterializer
   - module: buf.build/redpandadata/ai-gateway
 plugins:
   - remote: buf.build/bufbuild/es:v2.2.5

buf.yaml

@@ -8,7 +8,7 @@ deps:
   - buf.build/bufbuild/protovalidate
   - buf.build/googleapis/googleapis
   - buf.build/grpc-ecosystem/grpc-gateway:v2.24.0
-  - buf.build/redpandadata/common
+  - buf.build/redpandadata/common:5d899910f71449dda17179c2e198100d
   - buf.build/redpandadata/core:05aa34b3829a4d5a801d9487623a7c76
   - buf.build/redpandadata/otel
   - buf.build/redpandadata/ai-gateway:0033cbe9e91644188f7462f170f614b2