v03.10.00: Bridge release — MokoCassiopeia → MokoOnyx migration

- Minor bump 03.09.34 → 03.10.00
- Bridge migration wired into script.php update() method
- CHANGELOG: full release notes for 03.10.00
- README: rename notice added

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

CHANGELOG.md

@@ -19,6 +19,48 @@ All notable changes to the MokoCassiopeia Joomla template are documented in this
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [03.10.00] - 2026-04-18 — Bridge Release (MokoCassiopeia → MokoOnyx)
+
+### Important
+- **Template Rename** — MokoCassiopeia is being renamed to **MokoOnyx**. This bridge release automatically migrates your template settings, menu assignments, and files to the new name. MokoCassiopeia can be safely uninstalled after this update.
+
+### Added
+- **Offline page redesign** — Full-viewport background from Joomla offline_image or header background, glass card overlay, centered logo with glow, login accordion, copyright footer
+- **CSS variable click-to-copy** — Text containing `--variable-name` patterns is wrapped in clickable chips that copy to clipboard with toast notification
+- **Brand-aside 3-column layout** — Flex columns like top-a with card style
+- **mod_stats table layout** — Converted from definition list to semantic table
+- **Favicon multi-format support** — Now handles PNG, JPEG, GIF, WebP, BMP (not just PNG)
+- **Theme variables** — `--theme-fab-bg`, `--theme-fab-color`, `--theme-fab-btn-bg`, `--theme-fab-border`, `--offline-card-bg`
+- **Footer CSS variables** — Added to CSS Variables reference tab
+- **Bridge migration script** — `helper/bridge.php` handles automatic MokoCassiopeia → MokoOnyx migration
+- **Dedicated release runner** — Release workflows run on isolated `release` label runner
+- **Runner fleet** — 3 CI + 1 release runner (12 concurrent jobs)
+
+### Changed
+- **Gitea-primary CI/CD** — All workflows use Gitea API, GitHub is backup for stable/RC only
+- **Theme switcher** — Larger, bordered, theme-aware colors (off-white on dark, primary on light)
+- **Auto switch** — Red when off, green when on
+- **A11y toolbar** — Theme-aware colors for dark mode visibility
+- **Search button border** — Matches input border (`--input-border-color`)
+- **Offline message** — 0=hidden, 1=custom message, 2=system language string
+- **Light theme fonts** — Fixed trailing `)` syntax error, normalized quote style to match dark
+- **`--accent-color-secondary`** — Unified to `#6fb3ff` across both themes
+- **`--alert-color`** — Set to `#000` in light theme
+
+### Removed
+- Brand showcase tab (redundant with theme preview)
+- Position selectors for a11y/theme FAB (forced to bottom-right)
+- Custom theme CSS from git tracking (site-specific, gitignored)
+
+### Fixed
+- SHA-256 checksum format — Removed `sha256:` prefix (Joomla expects raw hex)
+- Favicon path resolution — Strips `#joomlaImage://` fragment, tries multiple path candidates
+- `REQUIRE_SIGNIN_VIEW` — Set to `false` for public release downloads
+- Release workflow — Uses Gitea API to update `updates.xml` on main (bypasses branch protection)
+- Language loading on offline page — `com_users` and core language files loaded explicitly
+
+---
+
 ## [Unreleased] - 2026-04-02
 
 ### Added