Create centralized event registry module (register_all/unregister_all)

[Copilot]

📝 Popis

Centralizuje všechny Blender event registrace do jediného modulu events/registry.py. Idempotentní register_all() a unregister_all() funkce trackují všechny handlery a timery pro garantované vyčištění při reload/unregister addonu.

Architektura:

• events/registry.py – jediné místo pro veškerý event wiring (handlers, timers, msgbus)
• handlers.py – pouze definice handler funkcí, žádná registrace
• connection.py – pouze WebSocket logika, timer management delegován na registry
• Tracking lists (_registered_handlers, _registered_timers) zajišťují kompletní cleanup

Idempotence:

# Bezpečné volat opakovaně
registry.register_all()  # Nejdříve volá unregister_all()
registry.register_all()  # Žádné duplikáty
registry.unregister_all()  # Žádné exceptions při opakování

Registrace pattern:

# Registry trackuje vše pro cleanup
handlers_to_register = [
    (bpy.app.handlers.save_post, handlers.on_save_post),
    (bpy.app.handlers.load_post, handlers.on_load_post),
    # ...
]

for handler_list, handler_func in handlers_to_register:
    if handler_func not in handler_list:
        handler_list.append(handler_func)
        _registered_handlers.append((handler_list, handler_func))

Připraveno pro msgbus subscriptions (placeholder comments).

✅ Checklist

• Kód odpovídá standardům projektu
• Změny jsou zdokumentovány (CONTEXT.md, README.md)
• Manuální testování proběhlo úspěšně (5/5 testů prošlo)
• Build v CI prošel (syntax check OK)

🧪 Jak otestovat

1. Nainstaluj addon v Blenderu
2. Enable addon – všechny handlery a timer se zaregistrují (log: "Registering all event handlers via registry")
3. Disable/enable addon opakovaně – žádné duplikáty, čisté cleanup
4. Prověř logy: každý handler/timer zalogován při register/unregister
5. Spusť testy: python3 tests/addon/test_registry.py -v

Original prompt

---

This section details on the original issue you should resolve

<issue_title>Create centralized event registry module (register_all/unregister_all)</issue_title>
<issue_description>Part of: #31

Create a single place where ALL Blender event wiring lives.

Proposed:

• blendmate-addon/events/registry.py (or similar)
• register_all() and unregister_all() must be idempotent
• store references to appended handlers and msgbus owners
• guarantee cleanup on addon reload/unregister

Acceptance criteria:

• no handler/msgbus registration outside registry
• unregister_all() removes everything without exceptions
• safe to call multiple times (no duplicates / no missing removals)

Notes:

• handlers: append/remove pairs
• msgbus: stable owner object, clear on unregister
• timers: keep returned handles (if needed) and stop appropriately</issue_description>

Comments on the Issue (you are @copilot in this section)

• Fixes Create centralized event registry module (register_all/unregister_all) #34

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[lebduska]

Copilot: PR #44 has conflicts with main. Please rebase/merge origin/main, resolve conflicts, push, ensure CI green, then mark PR Ready for review (remove draft). Keep changes minimal; add Fixes #<issue> in PR body if missing.

[lebduska]

Copilot: PR #44 has conflicts with main. Please rebase/merge origin/main, resolve conflicts, push, ensure CI green, then mark PR Ready for review (remove draft). Keep changes minimal; add Fixes #<issue> in PR body if missing.