Updated

• Upgraded to Paper API 26.1.2.build.63-stable (latest stable)
• Updated Adventure API to 5.1.0 (adventure-text-minimessage, adventure-text-serializer-legacy) — now compileOnly (provided by Paper 26.x server)
• Added Java 25 toolchain configuration
• Updated api-version in plugin.yml to 26.1.2

- Added <center>...</center> tag support to center chat/actionbar lines.
- Added JSON component message support (set mode: json or use `mode: auto` with lines that start with ` {` or ` [`).
- Added randomized intervals via `i ntervalMin`/` intervalMax` (minutes).
- Added timed windows via activeHourStart/ activeHourEnd (server local time).
- Added priority-based overlap control via priority (higher priority preempts lower to reduce overlapping streams).
- Implemented the config options that were previously documented but not applied:
- permission (only players with a permission see it)
- worlds (only in specific worlds)
- sound (plays a sound when an announcement is delivered)
- prefix (per-announcement prefix overrides global settings.prefix)
- cooldownSeconds (per-player cooldown per announcement)
- PlaceholderAPI placeholders are applied per-player before parsing (legacy/minimessage/json).
- Added Folia support by running message delivery on each player's region thread.
- settings.debugMode now actually controls debug logging (and /bubbleannounce debug still works for toggling at runtime).
- startup_scheduled message is now logged when timers are scheduled.