Implement the distributor v0.5 PipelineID update

docs/internal/distributor-adapter.md

@@ -18,6 +18,7 @@ Inputs:
 - distributor endpoint URL
 - token environment variable name
 - upload timeout
+- pipeline ID
 - bundle ID
 - idempotency key
 - source Markdown report path
@@ -54,8 +55,10 @@ The adapter is built from `notify.distributor` config:
 - `token_env`
 - `timeout`
 
-The app layer renders bundle ID, idempotency key, and bundle path from:
+The app layer renders pipeline ID, bundle ID, idempotency key, and bundle path
+from:
 
+- `pipeline_id_template`
 - `bundle_id_template`
 - `idempotency_key_template`
 - `report_path_template`
@@ -67,6 +70,7 @@ after config loading and `secrets.directory` processing.
 
 The adapter calls distributor `UploadFiles` with exactly one file:
 
+- pipeline ID: the rendered distributor workflow selector
 - source path: the managed Markdown report path selected by app orchestration
 - bundle path: the rendered bundle-relative report path
 - created: the report generation timestamp
@@ -86,12 +90,13 @@ with the status report preserved.
 
 ## Failure Behavior
 
-The adapter validates required endpoint, token env name, token value, bundle ID,
-idempotency key, source path, bundle path, and upload client inputs before
-uploading.
+The adapter validates required endpoint, token env name, token value, pipeline
+ID, bundle ID, idempotency key, source path, bundle path, and upload client
+inputs before uploading.
 
-Upload failures include endpoint, bundle ID, idempotency key, source path, and
-bundle path context. Token values are redacted from adapter errors.
+Upload failures include endpoint, pipeline ID, bundle ID, idempotency key,
+source path, and bundle path context. Token values are redacted from adapter
+errors.
 
 Distributor idempotency conflicts are exposed as a weatherreporter-owned
 `IdempotencyConflictError`, so callers do not depend on upstream distributor