Eliminate Python dependency: embed frontend assets in odoo-go

- Copy all OWL frontend assets (JS/CSS/XML/fonts/images) into frontend/
  directory (2925 files, 43MB) — no more runtime reads from Python Odoo
- Replace OdooAddonsPath config with FrontendDir pointing to local frontend/
- Rewire bundle.go, static.go, templates.go, webclient.go to read from
  frontend/ instead of external Python Odoo addons directory
- Auto-detect frontend/ and build/ dirs relative to binary in main.go
- Delete obsolete Python helper scripts (tools/*.py)

The Go server is now fully self-contained: single binary + frontend/ folder.

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

frontend/web/static/lib/bootstrap/scss/_progress.scss

@@ -0,0 +1,68 @@
+// Disable animation if transitions are disabled
+
+// scss-docs-start progress-keyframes
+@if $enable-transitions {
+  @keyframes progress-bar-stripes {
+    0% { background-position-x: $progress-height; }
+  }
+}
+// scss-docs-end progress-keyframes
+
+.progress,
+.progress-stacked {
+  // scss-docs-start progress-css-vars
+  --#{$prefix}progress-height: #{$progress-height};
+  @include rfs($progress-font-size, --#{$prefix}progress-font-size);
+  --#{$prefix}progress-bg: #{$progress-bg};
+  --#{$prefix}progress-border-radius: #{$progress-border-radius};
+  --#{$prefix}progress-box-shadow: #{$progress-box-shadow};
+  --#{$prefix}progress-bar-color: #{$progress-bar-color};
+  --#{$prefix}progress-bar-bg: #{$progress-bar-bg};
+  --#{$prefix}progress-bar-transition: #{$progress-bar-transition};
+  // scss-docs-end progress-css-vars
+
+  display: flex;
+  height: var(--#{$prefix}progress-height);
+  overflow: hidden; // force rounded corners by cropping it
+  @include font-size(var(--#{$prefix}progress-font-size));
+  background-color: var(--#{$prefix}progress-bg);
+  @include border-radius(var(--#{$prefix}progress-border-radius));
+  @include box-shadow(var(--#{$prefix}progress-box-shadow));
+}
+
+.progress-bar {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  overflow: hidden;
+  color: var(--#{$prefix}progress-bar-color);
+  text-align: center;
+  white-space: nowrap;
+  background-color: var(--#{$prefix}progress-bar-bg);
+  @include transition(var(--#{$prefix}progress-bar-transition));
+}
+
+.progress-bar-striped {
+  @include gradient-striped();
+  background-size: var(--#{$prefix}progress-height) var(--#{$prefix}progress-height);
+}
+
+.progress-stacked > .progress {
+  overflow: visible;
+}
+
+.progress-stacked > .progress > .progress-bar {
+  width: 100%;
+}
+
+@if $enable-transitions {
+  .progress-bar-animated {
+    animation: $progress-bar-animation-timing progress-bar-stripes;
+
+    @if $enable-reduced-motion {
+      @media (prefers-reduced-motion: reduce) {
+        animation: none;
+      }
+    }
+  }
+}