Remove the inherited gh-pages, IPFS and Docker Hub release tooling

None of it could run here: the repository has no Pages site, no Pinata or
Crust credentials and no npm token, and docker/build.sh pushed to the
upstream author's Docker Hub account. Remove the release scripts, the IPFS
uploader with @pinata/sdk (axios 0.21) and @crustio/crust-pin, and
public/ipfs, whose pin.json and redirect pointed at another project's IPFS
build from this site.

README: the hosted URL is apps.pezkuwichain.io; drop the IPFS and desktop
chapters and the pull of a Docker image that does not exist. .gitignore
listed '.log' where '*.log' was meant, which let start.log in.

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

docker/build.sh

@@ -1,33 +0,0 @@
-#!/usr/bin/env bash
-# Copyright 2017-2025 @polkadot/apps authors & contributors
-# This software may be modified and distributed under the terms
-# of the Apache-2.0 license. See the LICENSE file for details.
-
-# fail fast on any non-zero exits
-set -e
-
-# the docker image name and dockerhub repo
-NAME="polkadot-js-apps"
-REPO="jacogr"
-
-# extract the current npm version from package.json
-VERSION=$(cat package.json \
-  | grep version \
-  | head -1 \
-  | awk -F: '{ print $2 }' \
-  | sed 's/[",]//g' \
-  | sed 's/ //g')
-
-echo "*** Building $NAME"
-docker build -t $NAME -f docker/Dockerfile .
-
-docker login -u $REPO -p $DOCKER_PASS
-
-echo "*** Tagging $REPO/$NAME"
-if [[ $VERSION != *"beta"* ]]; then
-  docker tag $NAME $REPO/$NAME:$VERSION
-fi
-docker tag $NAME $REPO/$NAME
-
-echo "*** Publishing $NAME"
-docker push $REPO/$NAME