Release under the SolidCraft name: binaries, assets and installers (#383)

* Release under the SolidCraft name: binaries, assets and installers

The desktop binary is now `solidcraft` and the CLI `solidcraft-cli` (the two app packages
are renamed; their folders move with the rest of the rename later). Every release asset is
named solidcraft-<ver>-… / SolidCraft-<ver>-windows-x64.exe, and the installers show the
SolidCraft product name.

Kept so existing installs keep updating (docs/compatibility.md):
- `solvecraft-cli` alias binary in every package, forwarding to solidcraft-cli with a
  deprecation note on stderr (tests/legacy_alias.rs).
- Linux app ID ai.storyteller.solvecraft (Flatpak ID, desktop entry, Wayland app_id).
- MSI UpgradeCode, so the MSI upgrades in place.
- deb Replaces/Conflicts/Provides and rpm Obsoletes/Provides solvecraft.
- An old-named .zsync copy so earlier AppImages find updates; a legacy .flatpakrepo copy.
- .solvecraft file associations; SOLVECRAFT_* fallbacks in the packaging scripts.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RjGw4gA5ZvKrU8MQP6sBgT

* MSI: register the legacy .solvecraft extension without a duplicate open verb

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RjGw4gA5ZvKrU8MQP6sBgT

---------

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>

packaging/linux/flatpak-bundle.sh

@@ -1,11 +1,11 @@
 #!/usr/bin/env bash
 # Repackage a SolidCraft Linux tarball as a single-file Flatpak bundle:
 #
-#   $DIST/solvecraft-<version>-linux-<arch>.flatpak
+#   $DIST/solidcraft-<version>-linux-<arch>.flatpak
 #
 # Usage: packaging/linux/flatpak-bundle.sh [--no-test] [TARBALL]
 #
-# TARBALL defaults to $DIST/solvecraft-<version>-linux-<arch>.tar.gz from package.sh. The bundle
+# TARBALL defaults to $DIST/solidcraft-<version>-linux-<arch>.tar.gz from package.sh. The bundle
 # is built for the host architecture (x86_64 or aarch64), which must match the tarball's.
 # Needs flatpak, flatpak-builder and the SVG pixbuf loader (librsvg2-common) for the host's
 # `appstreamcli compose`; the freedesktop runtime and SDK named in the manifest are
@@ -37,7 +37,7 @@ case "$ARCH" in
   aarch64 | arm64) ARCH=aarch64 ;;
   *) echo "unsupported architecture $ARCH" >&2; exit 2 ;;
 esac
-BASENAME="solvecraft-$VERSION-linux-$ARCH"
+BASENAME="solidcraft-$VERSION-linux-$ARCH"
 TARBALL="${TARBALL:-$DIST/$BASENAME.tar.gz}"
 [ -f "$TARBALL" ] || { echo "error: $TARBALL not found (run packaging/linux/package.sh --formats tar first)" >&2; exit 1; }
 for tool in flatpak flatpak-builder; do
@@ -50,7 +50,7 @@ WORK="$CARGO_TARGET_DIR/flatpak-bundle"
 rm -rf "$WORK"
 mkdir -p "$WORK/stage"
 tar -xzf "$TARBALL" -C "$WORK/stage" --strip-components=1
-[ -x "$WORK/stage/bin/solvecraft" ] || { echo "error: $TARBALL has no bin/solvecraft" >&2; exit 1; }
+[ -x "$WORK/stage/bin/solidcraft" ] || { echo "error: $TARBALL has no bin/solidcraft" >&2; exit 1; }
 cp "$HERE/flatpak/$APP_ID.bundle.yml" "$WORK/$APP_ID.yml"
 
 flatpak remote-add --user --if-not-exists flathub "$FLATHUB"
@@ -66,8 +66,8 @@ echo "wrote $OUT"
 if [ "$TEST" = 1 ]; then
   flatpak install --user -y --noninteractive --reinstall "$OUT"
   flatpak info --user "$APP_ID"
-  flatpak run --command=solvecraft-cli "$APP_ID" --version
-  flatpak run --command=sh "$APP_ID" -c 'ls /app/share/applications /app/share/metainfo /app/share/mime/packages /app/share/icons/hicolor/256x256/apps /app/share/doc/solvecraft'
+  flatpak run --command=solidcraft-cli "$APP_ID" --version
+  flatpak run --command=sh "$APP_ID" -c 'ls /app/share/applications /app/share/metainfo /app/share/mime/packages /app/share/icons/hicolor/256x256/apps /app/share/doc/solidcraft'
   python3 "$HERE/flatpak-smoke.py" --backend both
 fi
 echo "==> done"