SIENTIAPDE-1974

SIENTIAPDE-1974  Split orchestrator_functions into pipeline configs, tag database and OPC slots
- orchestrator_functions.py held four unrelated concerns (pipeline
  builders, tag database indexes, PI Web API resolution, OPC slot v2)
  and had grown to 1135 lines. Move them, unchanged, into:
  pipeline_configs.py, tag_database.py and opc_slots.py.
- Make the helpers shared across modules public: is_complete,
  tag_id_text and pi_connection.
- Split the utils tests the same way, with the pipeline and tag
  database documents they share in tag_database_fixtures.py.
- Point formatters, the orchestrator workflow, README and CLAUDE.md at
  the new modules.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

CLAUDE.md

@@ -47,7 +47,7 @@ CI quality gate (`.github/workflows/quality-gate.yml`) calls the shared reusable
 - **`orchestrator/worker/worker.py`** — entrypoint (`python -m orchestrator.worker.worker`). Builds a single `Activities` instance, connects to Temporal, starts Prometheus (`HTTP_METRICS_PORT`) and Temporal SDK metrics (`HTTP_SDK_METRICS_PORT`) servers, then runs three `Worker`s concurrently via `asyncio.gather`, each on its own task queue: `orchestrator-queue`, `alerts-queue`, `reports-queue`. `prepare_worker.py` derives the queue name from the workflow class name (`camel_to_snake`) and reads per-queue concurrency/poller tuning from env vars prefixed with the workflow name (e.g. `ORCHESTRATOR_MAX_CONCURRENT_ACTIVITIES`).
 - **`orchestrator/workflows/`** — Temporal workflow definitions: `orchestrator.py` (pipeline/slot/schedule orchestration), `alerts.py` (real-time ERROR notifications), `reports.py` (scheduled all-level reports). `alerts.py` and `reports.py` both delegate to the same two subworkflows in `workflows/subworkflows/`: `load_notification_package.py` (load notifications + receiver configs from Mongo, incremental via Redis timestamp) and `process_notifications.py` (build HTML email, send, log to Postgres). The difference between alerts and reports is which filter activity they call (`filter_notification_alerts` vs `filter_notification_reports`) and their base data filter (`level: ERROR` by default vs all levels) — `load_notification_package.py`'s `_compute_query_time_filter` can widen either beyond that default to the union of active receiver groups' own `levels` (SIENTIAPDE-2011); the ERROR-only default only holds when no active group narrows further. Receiver groups also support a `model_ids` allow-list (SIENTIAPDE-2149), independent of the pre-existing `ignore_models_id` deny-list — both apply together (AND) when a group configures both, and `model_ids` follows the same union-at-query-time / precise-per-group-slice split as `levels`. `load_latest_data`'s Mongo query is capped at `NOTIFICATION_QUEUE_BATCH_SIZE` documents per run (default `0`, meaning unlimited — unchanged from pre-SIENTIAPDE-2013 behavior unless a deployment opts in), sorted by `timestamp` ascending so a capped run always returns the oldest pending batch first (SIENTIAPDE-2013) — a hard cap with no drain loop, since the incremental Redis cursor picks up any remainder on the next run.
 - **`orchestrator/activities/activities.py`** — `Activities` is a single class combining every activity mixin via multiple inheritance: `TemporalManager, SlotManager, Formatters, MongoDB, Email, Postgres` (Postgres comes from `sientia_do.temporal.activities.postgres`, the external `sientia-dataops-library` dependency). One instance is constructed in `worker.py` and its bound methods are handed to each `Worker` as the activity list — activities are plain methods on this shared object, not separate classes. Each mixin's `__init__` takes its own config dict plus shared `logger`, `notification_handler`, `metrics_controller`. `Activities.shutdown()` closes every mixin's connections.
-- **`orchestrator/utils/`** — `connectors_config.py` builds each config dict from env vars (Temporal/Redis/MongoDB/Postgres/Email); `email_builder.py` renders Jinja2 templates (`utils/templates/email_template.html`, `general_template.html`); `orchestrator_functions.py` transforms pipeline documents into pipeline-type-specific configs (`scouter`, `pi_web_api_scouter`, `predictions_batch`, `minimal_retrain`, `drift`, `simple_metrics`) and builds the OPC slot v2 the gateway reads (`gather_read_tags` / `build_tag_config`, contract C1: one entry per address with a `names[]` list, tags resolved through the tag database when they carry a `tag_id`; see the README section "OPC slots"). `resolve_tag_names` is the single source of tag names for both the scouter's `model_tags` and the slot's `names` (SIENTIAPDE-1974 SC1); `converters.py` handles Temporal schedule frequency parsing.
+- **`orchestrator/utils/`** — `connectors_config.py` builds each config dict from env vars (Temporal/Redis/MongoDB/Postgres/Email); `email_builder.py` renders Jinja2 templates (`utils/templates/email_template.html`, `general_template.html`); `pipeline_configs.py` transforms pipeline documents into pipeline-type-specific configs (`scouter`, `pi_web_api_scouter`, `predictions_batch`, `minimal_retrain`, `drift`, `simple_metrics`); `tag_database.py` indexes the tag database (`connectors` + `connector_tags`) and resolves tags by `tag_id` (OPC UA names, PI Web API WebIDs and connection); `opc_slots.py` builds the OPC slot v2 the gateway reads (`gather_read_tags` / `build_tag_config`, contract C1: one entry per address with a `names[]` list; see the README section "OPC slots"). `resolve_tag_names` (in `tag_database.py`) is the single source of tag names for both the scouter's `model_tags` and the slot's `names` (SIENTIAPDE-1974 SC1); `converters.py` handles Temporal schedule frequency parsing.
 
 ### Temporal-specific conventions (all workflow/activity files follow this)
 - Every workflow and activity-consuming module wraps non-deterministic/side-effecting imports in `with workflow.unsafe.imports_passed_through(): ...` right after `from temporalio import workflow`, because Temporal's sandbox restricts what workflow code can import directly. When adding a new workflow file, follow the existing pattern (see `orchestrator/workflows/orchestrator.py`, `orchestrator/activities/activities.py`) rather than importing at module top level.