Add configurable stratum port (default 3333)

Exposes stratum-port in the StartOS config UI so users running
simpleproxy or another TCP forwarder can point Kamado at a
non-default port. Entrypoint substitutes the value into
ckpool.conf serverurl.

Also pins placeholder KAMADO_SHA in the Dockerfile — swap to a
real pushed commit before the first build.

Dockerfile

@@ -11,7 +11,7 @@
 # WILL fail until the KamadoPool source repo is pushed to GitHub.
 
 ARG KAMADO_REPO=https://github.com/Relaxo143/KamadoPool.git
-ARG KAMADO_SHA=REPLACE_ME_WITH_PUSHED_COMMIT_SHA
+ARG KAMADO_SHA=0000000000000000000000000000000000000000
 ARG ARCH
 
 # ---------- stage 1: fetch source ----------

docker_entrypoint.sh

@@ -40,6 +40,7 @@ BITCOIN_USER=$(q '.bitcoind.user')
 BITCOIN_PASS=$(q '.bitcoind.password')
 POOL_BTCADDRESS=$(q '.pool-address')
 POOL_IDENTIFIER=$(q '.pool-identifier')
+STRATUM_PORT=$(q '.stratum-port // 3333')
 DROPIDLE=$(q '.dropidle // 0')
 STARTDIFF=$(q '.startdiff // 16384')
 MINDIFF=$(q '.mindiff // 1000')
@@ -59,7 +60,7 @@ cat > "${CKPOOL_CONF}" <<EOF
  "btcaddress": "${POOL_BTCADDRESS}",
  "btcsig": "${POOL_IDENTIFIER}",
  "serverurl": [
-  "0.0.0.0:3333"
+  "0.0.0.0:${STRATUM_PORT}"
  ],
  "mindiff": ${MINDIFF},
  "startdiff": ${STARTDIFF},

scripts/procedures/getConfig.ts

@@ -81,6 +81,16 @@ export const getConfig: T.ExpectedExports.getConfig = compat.getConfig({
     "masked": false,
     "copyable": false,
   },
+  "stratum-port": {
+    "type": "number",
+    "name": "Stratum Port",
+    "description":
+      "TCP port the stratum server listens on inside the container. Defaults to 3333. Change this if you are running simpleproxy (or another TCP forwarder) and want Kamado to listen on a different port — useful when another service on the same host already uses 3333.",
+    "nullable": false,
+    "default": 3333,
+    "range": "[1,65535]",
+    "integral": true,
+  },
   "startdiff": {
     "type": "number",
     "name": "Starting Difficulty",