fix(integration): mount missing SQL files 10-12 in ClickHouse init

3 SQL files were missing from the docker-compose.yml volume mounts:
- 10_perf_indexes.sql (performance indexes)
- 11_views.sql (dashboard views)
- 12_thesis_features.sql (thesis §5 MVs and views)

Also make 10_perf_indexes.sql non-fatal in init script since ALTER TABLE
ADD INDEX may fail if index already exists.

Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>

tests/integration/platform/clickhouse-init.sh

@@ -23,8 +23,15 @@ done
 
 for f in "$TMP_DIR"/*.sql; do
     [ -f "$f" ] || continue
-    echo "[init] Executing $(basename "$f")"
-    clickhouse-client --multiquery < "$f"
+    base=$(basename "$f")
+    echo "[init] Executing $base"
+    # 10_perf_indexes.sql uses ALTER TABLE ADD INDEX which may fail if index
+    # already exists — allow non-zero exit for migration/perf scripts
+    if [[ "$base" == 10_* ]]; then
+        clickhouse-client --multiquery < "$f" || echo "[init] WARNING: $base had errors (expected for duplicate indexes)"
+    else
+        clickhouse-client --multiquery < "$f"
+    fi
 done
 
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