Fix Meteor LRPT decoding in Docker and enhance weather satellite UI

Docker fixes:
- Add missing COPY for /usr/local/share/ (pipeline definitions were never
  reaching the runtime image — root cause of silent SatDump failures)
- Add libfftw3-double3 and libfftw3-single3 runtime dependencies
- Handle arm64 vs x86 install path differences (/usr vs /usr/local)
- Split SatDump compile and staging into separate layers for better caching
- Add build-time assertions to catch missing pipelines early

UI enhancements:
- Timezone selector (UTC, Local, Eastern, Central, Mountain, Pacific)
  with localStorage persistence — all time displays update instantly
- Pass analysis bar showing 24h quality breakdown and best upcoming pass
- Enhanced pass cards with cardinal direction (NW→SE), BEST badge
- Console timestamps, log level filters (ALL/SIGNAL/PROG/ERR), COPY/CLR
- Pass count in stats strip
- Demo data mode for UI testing without SDR or live satellite pass
- Meteor M2-4 80k baud fallback pipeline option

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Dockerfile

@@ -126,6 +126,7 @@ RUN cd /tmp \
     && rm -rf /tmp/slowrx
 
 # Build SatDump (weather satellite decoder - NOAA APT & Meteor LRPT) — pinned to v1.2.2
+# Split into compile (heavy, cached) and staging (light, safe to change) layers
 RUN cd /tmp \
     && git clone --depth 1 --branch 1.2.2 https://github.com/SatDump/SatDump.git \
     && cd SatDump \
@@ -147,14 +148,29 @@ RUN cd /tmp \
             fi; \
         done; \
     fi \
-    # Copy SatDump install artifacts to staging
-    && cp -a /usr/local/bin/satdump /staging/usr/local/bin/ 2>/dev/null || true \
-    && cp -a /usr/local/lib/libsatdump* /staging/usr/local/lib/ 2>/dev/null || true \
-    && cp -a /usr/local/lib/satdump /staging/usr/local/lib/ 2>/dev/null || true \
-    && cp -a /usr/local/share/satdump /staging/usr/local/share/ 2>/dev/null; mkdir -p /staging/usr/local/share \
-    && cp -a /usr/local/share/satdump /staging/usr/local/share/ 2>/dev/null || true \
     && rm -rf /tmp/SatDump
 
+# Stage SatDump artifacts (separate layer so compile cache survives staging changes)
+# On arm64 cmake installs to /usr/{bin,lib,share}; on x86 to /usr/local/{bin,lib,share}
+RUN mkdir -p /staging/usr/local/share /staging/usr/local/lib/satdump/plugins \
+    # Binary
+    && (cp -a /usr/local/bin/satdump /staging/usr/local/bin/ 2>/dev/null \
+        || cp -a /usr/bin/satdump /staging/usr/local/bin/) \
+    # Core shared library
+    && (cp -a /usr/local/lib/libsatdump* /staging/usr/local/lib/ 2>/dev/null \
+        || cp -a /usr/lib/libsatdump* /staging/usr/local/lib/) \
+    # Plugins
+    && (cp -a /usr/local/lib/satdump/plugins/*.so /staging/usr/local/lib/satdump/plugins/ 2>/dev/null \
+        || cp -a /usr/lib/satdump/plugins/*.so /staging/usr/local/lib/satdump/plugins/ 2>/dev/null \
+        || true) \
+    # Pipeline definitions and resources
+    && (cp -a /usr/local/share/satdump /staging/usr/local/share/ 2>/dev/null \
+        || cp -a /usr/share/satdump /staging/usr/local/share/) \
+    # Verify
+    && test -x /staging/usr/local/bin/satdump \
+    && ls /staging/usr/local/share/satdump/pipelines/*.json >/dev/null 2>&1 \
+    && echo "SatDump staging OK: $(ls /staging/usr/local/share/satdump/pipelines/*.json | wc -l) pipeline files"
+
 # Build hackrf CLI tools from source — avoids libhackrf0 version conflict
 # between the 'hackrf' apt package and soapysdr-module-hackrf's newer libhackrf0
 RUN cd /tmp \
@@ -219,6 +235,8 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
     libpng16-16 \
     libtiff6 \
     libjemalloc2 \
+    libfftw3-double3 \
+    libfftw3-single3 \
     libvolk-bin \
     libnng1 \
     libzstd1 \
@@ -254,6 +272,7 @@ RUN apt-get update && apt-get install -y --no-install-recommends \
 COPY --from=builder /staging/usr/bin/ /usr/bin/
 COPY --from=builder /staging/usr/local/bin/ /usr/local/bin/
 COPY --from=builder /staging/usr/local/lib/ /usr/local/lib/
+COPY --from=builder /staging/usr/local/share/ /usr/local/share/
 COPY --from=builder /staging/opt/ /opt/
 
 # Copy radiosonde Python dependencies installed during builder stage