* feat: add setReferenceHandler to Builder
Allow consumers to provide a custom ReferenceHandlerInterface
implementation (e.g. a security-aware decorator) instead of
always using the default ReferenceHandler.
* test: add BuilderTest for setReferenceHandler
- Fluent API returns builder instance
- build() succeeds with and without custom handler
- Integration test verifies custom handler intercepts tool calls
* style: fix codestyle in BuilderTest
* style: use imports instead of inline FQCNs in BuilderTest
* docs: add changelog entry for setReferenceHandler
* Remove `getSummary` method and update descriptions in snapshots and code
* Add changelog entry
---------
Co-authored-by: Christopher Hertel <mail@christopher-hertel.de>
* schema generator injection
* add interface for schema generator
* improve discoverer dependency
* remove some comments
* make some classes final
* simplify condition
* code review
* Extend changelog for covering interfaces
* Adopt SchemaGeneratorInterface after rebase and #153
---------
Co-authored-by: Christopher Hertel <mail@christopher-hertel.de>
- Remove ToolChain, ResourceChain, PromptChain classes
- Remove Collection/Identifier/Metadata interfaces (only used by old Chains)
- Remove ToolCollectionInterface (unused)
- Delete obsolete examples 09-standalone-cli and 10-simple-http-transport
- Fix STDERR handling in bootstrap.php for web environments
- Clean up CHANGELOG.md
