fix(docker): provision durable topics and canonical ClickHouse schema

scripts/init_db.sql

@@ -1,41 +0,0 @@
--- ClickHouse Initialization Script for Telecom CDR Ingestion Pipeline
--- Database: telecom
--- Table: telecom.cdr_records
-
-CREATE DATABASE IF NOT EXISTS telecom;
-
-CREATE TABLE IF NOT EXISTS telecom.cdr_records (
-    -- Identifiers
-    cdr_id              UUID,
-    raw_id              String,
-
-    -- Subscriber
-    msisdn              String,
-    imsi                String,
-
-    -- Session metadata
-    service_type        LowCardinality(String),
-    radio_access_type   LowCardinality(String),
-    cell_id             LowCardinality(String),
-
-    -- Traffic
-    bytes_uploaded      UInt64,
-    bytes_downloaded    UInt64,
-    total_bytes         UInt64,
-    duration_seconds    UInt32,
-
-    -- Timing
-    session_start_time  DateTime,
-    session_end_time    DateTime,
-
-    -- Network
-    source_ip           IPv4,
-
-    -- Audit
-    processed_at        DateTime64(3) DEFAULT now()
-
-) ENGINE = ReplacingMergeTree(processed_at)
-PARTITION BY toYYYYMM(session_start_time)
-ORDER BY (service_type, radio_access_type, cell_id, session_start_time, msisdn)
-TTL session_start_time + INTERVAL 90 DAY
-SETTINGS index_granularity = 8192;