fix(ml): complete ML pipeline fixes and setup

- Fix CCI indicator to use HLC prices instead of close only
- Parse datetime column when loading enriched CSV
- Strip timezone from annotation timestamps
- Fix TA-Lib pattern names (CDL3WHITESOLDIERS, CDL3BLACKCROWS)
- Exclude programmatic label columns from training features
- Fix classification report to handle missing classes
- Update MLflow tracking to use localhost:5000
- Grant PostgreSQL permissions to ml_user

Pipeline now runs successfully end-to-end:
- Feature engineering: 2543 rows, 31 columns
- Annotation ingestion: 286 samples
- Training: 89.47% test accuracy with Random Forest

services/ml/mlruns/358560345319124639/models/m-045042d4be424487a3c0ff303d90466d/artifacts/MLmodel

@@ -0,0 +1,23 @@
+artifact_path: file:///home/homoludens/projekti/bitcon/candle_annotator/services/ml/mlruns/358560345319124639/models/m-045042d4be424487a3c0ff303d90466d/artifacts
+flavors:
+  python_function:
+    env:
+      conda: conda.yaml
+      virtualenv: python_env.yaml
+    loader_module: mlflow.sklearn
+    model_path: model.pkl
+    predict_fn: predict
+    python_version: 3.13.5
+  sklearn:
+    code: null
+    pickled_model: model.pkl
+    serialization_format: cloudpickle
+    sklearn_version: 1.8.0
+    skops_trusted_types: null
+mlflow_version: 3.9.0
+model_id: m-045042d4be424487a3c0ff303d90466d
+model_size_bytes: 793682
+model_uuid: m-045042d4be424487a3c0ff303d90466d
+prompts: null
+run_id: f1a0c7b223484d019564929940766c10
+utc_time_created: '2026-02-15 20:29:38.262687'