Bump version to 1.1.6; fix storage bugs, tests, CI pipeline and Docker config

Storage fixes:
- Fix bloom filter hash2 OverflowDefect (uint64 instead of int Hash)
- Fix MemTable.put size calculation on overwrite (was leaking size)
- Fix fuzz_test duplicate-key issues in LSM delete and SSTable tests

Test fixes:
- Fix stress_test.nim: replace deprecated threadpool with std/threads
- Fix fuzz_test.nim: add missing imports (tables, algorithm, sets)
- Fix fuzz_test.nim: var sst for close() compatibility
- Remove unused imports from test_all.nim and bench_all.nim

Docker / CI fixes:
- Fix Dockerfile.source: invalid nimlang/nim:2.2.10-alpine tag → 2.2.10 + ubuntu:24.04 runtime
- Fix Dockerfile.source healthcheck (--spider → -qO- for 200 OK)
- Fix Dockerfile run comment ports (9470/9471 → 9912/9913)
- Fix scripts/docker-run.sh healthcheck port (9470 → 9912)
- Add ARG BUILD_DATE/VCS_REF to Dockerfile for docker-build.sh
- Update all version strings 1.1.4 → 1.1.6 across nimble/docker/source/docs

Dockerfile

@@ -10,13 +10,16 @@
 #   docker build -t baradb:latest .
 #
 # Run:
-#   docker run -d -p 9472:9472 -p 9470:9470 -p 9471:9471 -v baradb_data:/data baradb:latest
+#   docker run -d -p 9472:9472 -p 9912:9912 -p 9913:9913 -v baradb_data:/data baradb:latest
 
 FROM debian:bookworm-slim
 
+ARG BUILD_DATE
+ARG VCS_REF
+
 LABEL maintainer="BaraDB Team"
 LABEL description="BaraDB — Multimodal Database Engine"
-LABEL version="1.1.4"
+LABEL version="1.1.6"
 
 # Инсталираме runtime зависимости
 # libpcre3 — нужна за Nim regex (зарежда се динамично)