proto: bump transcript ID max_len from 128 to 256 (#2427)

The 128-char cap on conversation_id, turn_id, tool_call_id, model,
and user_id has no upstream basis. OTel doesn't constrain
gen_ai.conversation.id; chat platforms (Microsoft Teams personal-DM
threads, Slack thread IDs, Discord channel IDs) routinely produce
IDs that exceed 128 characters. When buf-validate rejects the
TranscriptSummary response, the per-agent Transcripts tab is empty
even though the spans are visible in the global tracing view.

Bump to 256 across the board for consistency with the existing
title and TranscriptToolCall.name fields.

Author: birdayz

backend/pkg/protogen/redpanda/api/dataplane/v1alpha3/transcript.pb.go

@@ -17,7 +17,7 @@ import type { Message } from "@bufbuild/protobuf";
  * Describes the file redpanda/api/dataplane/v1alpha3/transcript.proto.
  */
 export const file_redpanda_api_dataplane_v1alpha3_transcript: GenFile = /*@__PURE__*/
-  fileDesc("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", [file_buf_validate_validate, file_google_api_annotations, file_google_api_field_behavior, file_google_protobuf_duration, file_google_protobuf_timestamp, file_protoc_gen_openapiv2_options_annotations, file_redpanda_api_auth_v1_authorization]);
+  fileDesc("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", [file_buf_validate_validate, file_google_api_annotations, file_google_api_field_behavior, file_google_protobuf_duration, file_google_protobuf_timestamp, file_protoc_gen_openapiv2_options_annotations, file_redpanda_api_auth_v1_authorization]);
 
 /**
  * Token and cost usage for a transcript or turn.

frontend/src/protogen/redpanda/api/dataplane/v1alpha3/transcript_pb.ts

@@ -155,7 +155,7 @@ message TranscriptError {
 // gen_ai.operation.name = "execute_tool".
 message TranscriptToolCall {
   // Unique tool call identifier. Sourced from the OTel span ID.
-  string tool_call_id = 1 [(buf.validate.field).string.max_len = 128];
+  string tool_call_id = 1 [(buf.validate.field).string.max_len = 256];
   // Tool name. From gen_ai.tool.name span attribute.
   string name = 2 [
     (google.api.field_behavior) = REQUIRED,
@@ -183,7 +183,7 @@ message TranscriptTurn {
     (google.api.field_behavior) = REQUIRED,
     (buf.validate.field).required = true,
     (buf.validate.field).string.min_len = 1,
-    (buf.validate.field).string.max_len = 128
+    (buf.validate.field).string.max_len = 256
   ];
   // Role of this turn in the conversation.
   TranscriptTurnRole role = 2;
@@ -192,7 +192,7 @@ message TranscriptTurn {
   // Message content (user prompt, assistant response, or tool result).
   string content = 4;
   // LLM model used for this turn. From gen_ai.request.model.
-  string model = 5 [(buf.validate.field).string.max_len = 128];
+  string model = 5 [(buf.validate.field).string.max_len = 256];
   // Turn duration. Derived from the span's duration.
   google.protobuf.Duration latency = 6;
   // Token usage for this turn.
@@ -219,7 +219,7 @@ message TranscriptSummary {
     (google.api.field_behavior) = REQUIRED,
     (buf.validate.field).required = true,
     (buf.validate.field).string.min_len = 1,
-    (buf.validate.field).string.max_len = 128
+    (buf.validate.field).string.max_len = 256
   ];
   // Agent that produced this conversation. For managed agents this is the
   // Redpanda agent ID; for BYOA this is the agent identifier from the
@@ -244,7 +244,7 @@ message TranscriptSummary {
   // Aggregated token usage and cost across all turns.
   TranscriptUsage usage = 9;
   // Identifier of the user who initiated the conversation.
-  string user_id = 10 [(buf.validate.field).string.max_len = 128];
+  string user_id = 10 [(buf.validate.field).string.max_len = 256];
   // Whether any turn in the conversation had an error.
   bool has_errors = 11;
 }
@@ -325,7 +325,7 @@ message GetTranscriptRequest {
     (google.api.field_behavior) = REQUIRED,
     (buf.validate.field).required = true,
     (buf.validate.field).string.min_len = 1,
-    (buf.validate.field).string.max_len = 128
+    (buf.validate.field).string.max_len = 256
   ];
 }