docs: add DOCKER_GUIDE.md and fix .env parsing; chore: update docker and script configurations

scripts/fix_indicators_v2.sh

@@ -0,0 +1,54 @@
+#!/bin/bash
+# Fix indicators table schema - Version 2 (Final)
+# Handles TimescaleDB compression constraints properly
+
+echo "Fixing indicators table schema (v2)..."
+
+# 1. Decompress chunks individually (safest method)
+# We fetch the list of compressed chunks and process them one by one
+echo "Checking for compressed chunks..."
+CHUNKS=$(docker exec -i btc_timescale psql -U btc_bot -d btc_data -t -c "SELECT chunk_schema || '.' || chunk_name FROM timescaledb_information.chunks WHERE hypertable_name = 'indicators' AND is_compressed = true;")
+
+for chunk in $CHUNKS; do
+    # Trim whitespace
+    chunk=$(echo "$chunk" | xargs)
+    if [[ ! -z "$chunk" ]]; then
+        echo "Decompressing chunk: $chunk"
+        docker exec -i btc_timescale psql -U btc_bot -d btc_data -c "SELECT decompress_chunk('$chunk');"
+    fi
+done
+
+# 2. Execute the schema changes
+docker exec -i btc_timescale psql -U btc_bot -d btc_data <<EOF
+BEGIN;
+
+-- Remove policy first
+SELECT remove_compression_policy('indicators', if_exists => true);
+
+-- Disable compression setting (REQUIRED to add unique constraint)
+ALTER TABLE indicators SET (timescaledb.compress = false);
+
+-- Deduplicate data (just in case duplicates exist)
+DELETE FROM indicators a USING indicators b
+WHERE a.ctid < b.ctid
+  AND a.time = b.time
+  AND a.symbol = b.symbol
+  AND a.interval = b.interval
+  AND a.indicator_name = b.indicator_name;
+
+-- Add the unique constraint
+ALTER TABLE indicators ADD CONSTRAINT indicators_unique UNIQUE (time, symbol, interval, indicator_name);
+
+-- Re-enable compression configuration
+ALTER TABLE indicators SET (
+    timescaledb.compress,
+    timescaledb.compress_segmentby = 'symbol,interval,indicator_name'
+);
+
+-- Re-add compression policy (7 days)
+SELECT add_compression_policy('indicators', INTERVAL '7 days', if_not_exists => true);
+
+COMMIT;
+
+SELECT 'Indicators schema fix v2 completed successfully' as status;
+EOF