chore(release): 1.0.0-alpha.12

[anilcancakir]

Summary

• Bump version to 1.0.0-alpha.12
• Move unreleased changelog entries to dated section
• Update broadcasting docs (rules, skill references, README) with activity monitor, jitter, and connection timeout features

Changelog

✨ New Features

• Broadcasting: Client-side activity monitor — detects silent connection loss using Pusher protocol activity_timeout and pusher:ping/pusher:pong
• Broadcasting: Random jitter (up to 30%) on reconnection backoff delay — prevents thundering herd
• Broadcasting: Configurable connection establishment timeout (default 15s)

[sentry]

Codecov Report

✅ All modified and coverable lines are covered by tests.

📢 Thoughts on this report? Let us know!

[Copilot]

Pull request overview

Release housekeeping for 1.0.0-alpha.12, updating versioning and user-facing documentation around recent broadcasting enhancements (activity monitoring, reconnection jitter, and connection timeout).

Changes:

• Bump package version to 1.0.0-alpha.12 and add a dated changelog section for the release.
• Update broadcasting docs/rules/skill references/README to describe the new connection health, reconnection jitter, and connection timeout behavior.
• Expand the Echo facade reference to include connectionState and onReconnect.

Reviewed changes

Copilot reviewed 6 out of 6 changed files in this pull request and generated 3 comments.

Show a summary per file

File	Description
pubspec.yaml	Version bump to 1.0.0-alpha.12.
CHANGELOG.md	Add 1.0.0-alpha.12 section dated 2026-04-09 with broadcasting features.
README.md	Update feature summary to mention new broadcasting behaviors.
skills/magic-framework/SKILL.md	Update Echo facade quick reference API list.
skills/magic-framework/references/secondary-systems.md	Document Reverb driver activity monitoring, jitter backoff, and connection timeout + config keys/DI params.
.claude/rules/broadcasting.md	Update internal broadcasting rules and config example to include new features.