feat(ml): Complete hyperopt infrastructure + documentation

Changes:
- CLAUDE.md: Update OOM fix validation status
- Add comprehensive documentation (30+ markdown reports)
- LSTM encoder varmap bug fix (tft/lstm_encoder.rs:290)
- Quantized LSTM layer matching fix (tft/quantized_lstm.rs)
- Hyperopt paths module (ml/src/hyperopt/paths.rs)
- Training path tests for all adapters (DQN, MAMBA-2, PPO, TFT)
- Checkpoint integrity tests
- Script cleanup: Remove 29 obsolete deployment scripts
- Archive old scripts to scripts/archive/
- New deployment utilities: check_gpu_availability.py, monitor_hyperopt.sh

Validation:
- OOM fixes validated: 5/5 trials successful (pod b6kc3mc5lbjiro)
- Batch-size-max 256 tested successfully
- All hyperopt adapters working correctly

🤖 Generated with [Claude Code](https://claude.com/claude-code)

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

scripts/validate_binary.sh

@@ -0,0 +1,121 @@
+#!/bin/bash
+# Binary Validation Script - Prevents deploying wrong binaries
+# Usage: ./validate_binary.sh <binary_name>
+
+set -e
+
+BINARY_NAME="$1"
+if [ -z "$BINARY_NAME" ]; then
+    echo "❌ Usage: $0 <binary_name>"
+    exit 1
+fi
+
+LOCAL_PATH="target/release/examples/${BINARY_NAME}"
+S3_KEY="binaries/current/${BINARY_NAME}"
+S3_ENDPOINT="https://s3api-eur-is-1.runpod.io"
+S3_BUCKET="se3zdnb5o4"
+
+echo "========================================"
+echo "Binary Validation: ${BINARY_NAME}"
+echo "========================================"
+
+# 1. Check local binary exists
+if [ ! -f "$LOCAL_PATH" ]; then
+    echo "❌ FAIL: Local binary not found at $LOCAL_PATH"
+    exit 1
+fi
+echo "✅ Local binary exists"
+
+# 2. Test local binary works (basic smoke test)
+echo "🧪 Testing local binary..."
+if [[ "$BINARY_NAME" == hyperopt* ]]; then
+    # Test hyperopt binaries with --help
+    if ! $LOCAL_PATH --help &>/dev/null; then
+        echo "❌ FAIL: Local binary --help failed"
+        exit 1
+    fi
+
+    # Verify critical arguments present
+    if ! $LOCAL_PATH --help 2>&1 | grep -q -- "--base-dir"; then
+        echo "❌ FAIL: Local binary missing --base-dir argument"
+        echo "This binary was built BEFORE VarMap fix!"
+        exit 1
+    fi
+fi
+echo "✅ Local binary works and has correct arguments"
+
+# 3. Calculate local SHA256
+echo "🔍 Calculating local SHA256..."
+LOCAL_SHA256=$(sha256sum "$LOCAL_PATH" | awk '{print $1}')
+echo "Local SHA256:  $LOCAL_SHA256"
+
+# 4. Check if S3 binary exists
+echo "🔍 Checking S3 binary..."
+if ! aws s3api head-object \
+    --bucket "$S3_BUCKET" \
+    --key "$S3_KEY" \
+    --endpoint-url "$S3_ENDPOINT" \
+    --profile runpod &>/dev/null; then
+    echo "⚠️  S3 binary does not exist - will be uploaded"
+    echo "VALIDATION: LOCAL_ONLY"
+    exit 0
+fi
+
+# 5. Get S3 metadata
+S3_SIZE=$(aws s3api head-object \
+    --bucket "$S3_BUCKET" \
+    --key "$S3_KEY" \
+    --endpoint-url "$S3_ENDPOINT" \
+    --profile runpod \
+    | jq -r '.ContentLength')
+
+S3_MODIFIED=$(aws s3api head-object \
+    --bucket "$S3_BUCKET" \
+    --key "$S3_KEY" \
+    --endpoint-url "$S3_ENDPOINT" \
+    --profile runpod \
+    | jq -r '.LastModified')
+
+echo "S3 Size:       $S3_SIZE bytes"
+echo "S3 Modified:   $S3_MODIFIED"
+
+# 6. Download S3 binary to temp location for checksum
+echo "⬇️  Downloading S3 binary for checksum..."
+TEMP_S3="/tmp/${BINARY_NAME}_s3_$$"
+aws s3 cp \
+    "s3://${S3_BUCKET}/${S3_KEY}" \
+    "$TEMP_S3" \
+    --endpoint-url "$S3_ENDPOINT" \
+    --profile runpod \
+    --quiet
+
+# 7. Calculate S3 SHA256
+echo "🔍 Calculating S3 SHA256..."
+S3_SHA256=$(sha256sum "$TEMP_S3" | awk '{print $1}')
+echo "S3 SHA256:     $S3_SHA256"
+
+# 8. Cleanup temp file
+rm -f "$TEMP_S3"
+
+# 9. Compare checksums
+echo ""
+echo "========================================"
+if [ "$LOCAL_SHA256" = "$S3_SHA256" ]; then
+    echo "✅ VALIDATION PASSED"
+    echo "Local and S3 binaries match perfectly"
+    echo "========================================"
+    exit 0
+else
+    echo "❌ VALIDATION FAILED"
+    echo "Local and S3 binaries DO NOT MATCH"
+    echo ""
+    echo "Local:  $LOCAL_SHA256"
+    echo "S3:     $S3_SHA256"
+    echo ""
+    echo "REQUIRED ACTION:"
+    echo "1. Delete S3 binary: aws s3 rm s3://${S3_BUCKET}/${S3_KEY} --endpoint-url $S3_ENDPOINT --profile runpod"
+    echo "2. Upload local binary: aws s3 cp $LOCAL_PATH s3://${S3_BUCKET}/${S3_KEY} --endpoint-url $S3_ENDPOINT --profile runpod"
+    echo "3. Re-run validation"
+    echo "========================================"
+    exit 1
+fi