Implementation handles tree mutations during listener execution:
- Listeners can modify tree (remove self, siblings, parent)
- Validity check before processing children
- Deduplication prevents calling same listener twice
- Reentry guard prevents infinite loops

Previously, parameters from getDefaultParameters() were injected into the
compiler AFTER all user configs, which silently overrode any redefinition
in common.neon. As a result, e.g. `wwwDir: %rootDir%/www` in a config had
no effect when the entry script lived outside %rootDir%/www (CLI scripts,
MCP servers, scheduled tasks).

Fix: snapshot defaults into $defaultParameters at construction. In
generateContainer(), inject defaults BEFORE user configs (overridable),
then inject array_diff_key($staticParameters, $defaultParameters) AFTER
configs as authoritative explicit overrides.

Bookkeeping: setters (setTempDirectory, setDebugMode) route through
addStaticParameters(), which removes the touched keys from $defaultParameters.
That preserves the rule "what user explicitly set wins over configs" even
when the explicit value coincidentally equals the auto-detected default.

The container cache key includes the explicit set so two configurators
with identical $staticParameters but different "user-touched" keys
compile to distinct containers.

* opened 3.0-dev

* requires PHP 8.1

* uses PascalCase constants

* removed bridge for Latte

* Logger: added typehints

* Logger: md5 replaced with xxHash

* error.log changed to warning.log

* bar: errors panel => warnings

* readme: added link to Joomla integration (#583)

Link to Joomla! integration.

* used attribute Deprecated

* Update readme.md

Add link to Yii3 integration

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Co-authored-by: David Grudl <david@grudl.com>
Co-authored-by: n3t <n3t@n3t.cz>