fix: recover stale jobs on worker restart, persist active page on reload

- Worker resets running/cancelling jobs to idle on startup to fix jobs stuck after Docker restart
- Frontend saves current page to localStorage so reload returns to last visited page instead of always dashboard

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

worker/Dockerfile

@@ -1,12 +1,51 @@
 FROM debian:bookworm-slim
 
-# Install imapsync and dependencies
 RUN apt-get update && apt-get install -y --no-install-recommends \
-    imapsync \
+    wget \
+    git \
+    lsb-release \
+    libauthen-ntlm-perl \
+    libdist-checkconflicts-perl \
+    libpar-packer-perl \
+    libtest-requires-perl \
+    libtest-fatal-perl \
+    libtest-mock-guard-perl \
+    libcgi-pm-perl \
+    libcrypt-openssl-rsa-perl \
+    libdata-uniqid-perl \
+    libencode-imaputf7-perl \
+    libfile-copy-recursive-perl \
+    libfile-tail-perl \
+    libio-socket-inet6-perl \
+    libio-socket-ssl-perl \
+    libio-tee-perl \
+    libhtml-parser-perl \
+    libjson-webtoken-perl \
+    libmail-imapclient-perl \
+    libparse-recdescent-perl \
+    libmodule-scandeps-perl \
+    libreadonly-perl \
+    libregexp-common-perl \
+    libsys-meminfo-perl \
+    libterm-readkey-perl \
+    libtest-mockobject-perl \
+    libtest-pod-perl \
+    libunicode-string-perl \
+    liburi-perl \
+    libwww-perl \
+    libtest-nowarnings-perl \
+    libtest-deep-perl \
+    libtest-warn-perl \
+    make \
+    cpanminus \
+    gcc \
     python3 \
-    python3-pip \
+    ca-certificates \
     && rm -rf /var/lib/apt/lists/*
 
+RUN wget -O /usr/local/bin/imapsync https://imapsync.lamiral.info/imapsync && \
+    chmod +x /usr/local/bin/imapsync
+
 WORKDIR /app
 COPY worker.py .