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

src/barabadb/cli/shell.nim

@@ -5,7 +5,7 @@ import ../query/lexer
 import ../query/parser
 
 const
-  Version = "1.1.4"
+  Version = "1.1.6"
   Prompt = "bara> "
   ContinuationPrompt = "  .. > "
 

src/barabadb/core/httpserver.nim

@@ -199,7 +199,7 @@ proc queryHandler(server: HttpServer): RequestHandler =
 proc healthHandler(): RequestHandler =
   return proc(request: Request) {.gcsafe.} =
     let ctx = newContext(request)
-    ctx.json(%*{"status": "ok", "version": "1.1.4"})
+    ctx.json(%*{"status": "ok", "version": "1.1.6"})
 
 proc metricsHandler(server: HttpServer): RequestHandler =
   return proc(request: Request) {.gcsafe.} =
@@ -535,7 +535,7 @@ function showTab(idx){
 }
 setInterval(() => { if(document.querySelectorAll('.panel')[4].classList.contains('active')) loadMetrics() }, 5000)
 </script>
-<div class='status' style='text-align:center;padding:10px'>BaraDB v1.1.4 — Multimodal Database Engine</div>
+<div class='status' style='text-align:center;padding:10px'>BaraDB v1.1.6 — Multimodal Database Engine</div>
 </body></html>"""
     request.respond(200, @[("Content-Type", "text/html; charset=utf-8")], html)
 

src/barabadb/core/tracing.nim

@@ -116,7 +116,7 @@ proc exportOtlp*(tracer: Tracer, endpoint: string = "http://localhost:4318/v1/tr
         {"key": "service.name", "value": {"stringValue": "baradadb"}}
       ]},
       "scopeSpans": [{
-        "scope": {"name": "baradadb-tracer", "version": "1.1.4"},
+        "scope": {"name": "baradadb-tracer", "version": "1.1.6"},
         "spans": otlpSpans
       }]
     }]

src/barabadb/mcp/server.nim

@@ -503,7 +503,7 @@ proc handleInitialize(params: JsonNode): JsonNode =
     "protocolVersion": "2024-11-05",
     "serverInfo": {
       "name": "BaraDB MCP Server",
-      "version": "1.1.4"
+      "version": "1.1.6"
     },
     "capabilities": {
       "tools": {}
@@ -690,7 +690,7 @@ proc processMessage(raw: string): string =
 # ---------------------------------------------------------------------------
 
 proc init*(dataDir: string = "./data"): McpServerCtx =
-  logToStderr("BaraDB MCP Server v1.1.4 initializing...")
+  logToStderr("BaraDB MCP Server v1.1.6 initializing...")
   let db = newLSMTree(dataDir)
   let ctx = newExecutionContext(db)
   ctx.txnManager = newTxnManager()

src/barabadb/storage/bloom.nim

@@ -24,10 +24,10 @@ proc hash1*(bf: BloomFilter, data: openArray[byte]): uint64 =
   result = uint64(!$h)
 
 proc hash2*(bf: BloomFilter, data: openArray[byte]): uint64 =
-  var h: Hash = 5381
+  var h: uint64 = 5381
   for b in data:
-    h = ((h shl 5) + h) + Hash(b)
-  result = uint64(h)
+    h = ((h shl 5) + h) + uint64(b)
+  result = h
 
 proc getHashes(bf: BloomFilter, data: openArray[byte]): seq[int] =
   let h1 = bf.hash1(data)

src/barabadb/storage/lsm.nim

@@ -68,15 +68,17 @@ proc put*(mt: var MemTable, key: string, value: seq[byte], timestamp: uint64, de
   let entrySize = key.len + value.len + 16
   if entrySize > mt.maxSize:
     return false
-  if mt.size + entrySize > mt.maxSize and mt.entries.len > 0:
-    return false
   let entry = Entry(key: key, value: value, timestamp: timestamp, deleted: deleted)
   let pos = mt.entries.lowerBound(entry, proc(a, b: Entry): int = cmp(a.key, b.key))
   if pos < mt.entries.len and mt.entries[pos].key == key:
+    let oldSize = mt.entries[pos].key.len + mt.entries[pos].value.len + 16
     mt.entries[pos] = entry
+    mt.size += entrySize - oldSize
   else:
+    if mt.size + entrySize > mt.maxSize and mt.entries.len > 0:
+      return false
     mt.entries.insert(entry, pos)
-  mt.size += entrySize
+    mt.size += entrySize
   return true
 
 proc get*(mt: MemTable, key: string): (bool, Entry) =

src/baradadb.nim

@@ -211,7 +211,7 @@ proc main() =
   # Init structured logger from config
   let logLvl = parseEnum[LogLevel]("ll" & capitalizeAscii(config.logLevel))
   defaultLogger = newLogger(logLvl, config.logFile)
-  info("BaraDB v1.1.4 — Multimodal Database Engine")
+  info("BaraDB v1.1.6 — Multimodal Database Engine")
 
   # Security check: warn if JWT secret is not configured
   if config.jwtSecret.len == 0: