[5.1.0] Experimental queues, refactored schedules

[cjbrooks12]

What's New Since 5.0.1

New Modules

Server-side (all experimental)

Module	Summary
ballast-ktor-server	Ktor plugin to run Ballast ViewModels natively inside Ktor server applications
ballast-autoscale	Wraps a pool of ViewModels and dynamically scales worker count based on load — suited for server-side job processing
ballast-queue-core	Persistent background job queue with retries, backoff, cancellation, checkpointing, and stored results
ballast-queue-viewmodel	ViewModel wrapper around the job queue for familiar Ballast code patterns
ballast-queue-exposed-driver	PostgreSQL-backed queue driver using Jetbrains Exposed (MySQL experimental)

Scheduler (split out and expanded from ballast-schedules)

Module	Summary
ballast-scheduler-core	Core scheduler infrastructure, independent of Ballast MVI — coroutine delay and cron-like polling executors
ballast-scheduler-viewmodel	Integrates scheduler with ViewModels via SchedulerInterceptor to dispatch inputs on a schedule
ballast-scheduler-cron	Full cron expression support using OCPS syntax
ballast-scheduler-android-alarmmanager	Android AlarmManager-based persistent scheduler for exact-timing tasks when the app is backgrounded

Utilities

Module	Summary
ballast-kotlinx-serialization	Registers KSerializers once per ViewModel config so all plugins (debugger, queue, etc.) share them

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Deprecations

• ballast-repository — Marked deprecated. The MVI repository pattern is being phased out as it turned out to be a failed experiment.
• ballast-schedules — Marked deprecated. Superseded by the new ballast-scheduler-* family of modules.
• KillSwitch interceptor — Deprecated. Graceful shutdown is now a first-class API on BallastViewModel via AutoCloseable (close()) and SideJobScope.

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API Changes

• BallastEncoder / BallastDecoder — New unified serialization interfaces on the ViewModel config. Previously each plugin had its own serialization logic; now they all share one. ballast-kotlinx-serialization provides the implementation.
• ballast-navigation — Added pathFormat() helper for sharing route definitions between Ktor client and server.

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Documentation

The entire documentation system was overhauled — docs moved from an SSG/Orchid website into plain Markdown files living alongside the code:

• docs/ is the new home for all Ballast documentation
• Each module now has its own README.md co-located with the source code
• Old Orchid/MkDocs build system and all generated pages removed