Migrate from Google Guice to Spring Framework for dependency injection

[velo]

Summary

• Replaces Google Guice 7.0.0 with Spring Framework 6.2.3 for dependency injection
• Updates all @Inject annotations to use jakarta.inject package (JSR-330)
• Converts Guice modules to Spring @Configuration classes with @Bean methods
• Updates entry points to use Spring's ApplicationContext instead of Guice Injector

Changes

POM Updates

• Root POM: Added spring-framework.version and jakarta.inject.version properties, removed Guice properties
• sqrl-planner: Replaced Guice dependencies with spring-context and jakarta.inject-api
• sqrl-cli: Added createDependencyReducedPom=false to shade plugin to preserve transitive dependencies

Code Changes

• SqrlInjector: Converted from Guice AbstractModule to Spring @Configuration
• MockSqrlInjector: Same conversion for tests
• AbstractCompileCmd: Changed from Guice.createInjector() to AnnotationConfigApplicationContext
• BaseCmd: Changed exception handling from ProvisionException to BeanCreationException
• ExecutionEnginesHolder: Uses AutowireCapableBeanFactory for dynamic engine instantiation
• ~35 files: Updated imports from com.google.inject.* to jakarta.inject.*

Test plan

• Unit tests pass (sqrl-planner: 183 tests, sqrl-cli: 82 tests)
• Major integration tests pass (DAGPlannerTest, DAGWriterJsonTest, PredicatePushdownTest)
• Full integration test suite (some tests have pre-existing file permission issues)

🤖 Generated with Claude Code

[codecov]

Codecov Report

❌ Patch coverage is 0% with 30 lines in your changes missing coverage. Please review.
✅ Project coverage is 13.20%. Comparing base (368d861) to head (53b9074).
✅ All tests successful. No failed tests found.

Files with missing lines	Patch %	Lines
...main/java/com/datasqrl/cli/AbstractCompileCmd.java	0.00%	12 Missing ⚠️
...rl-cli/src/main/java/com/datasqrl/cli/BaseCmd.java	0.00%	6 Missing ⚠️
.../src/main/java/com/datasqrl/util/SqrlInjector.java	0.00%	6 Missing ⚠️
...va/com/datasqrl/config/ExecutionEnginesHolder.java	0.00%	2 Missing ⚠️
...main/java/com/datasqrl/config/PipelineFactory.java	0.00%	2 Missing ⚠️
...n/java/com/datasqrl/config/SqrlConfigPipeline.java	0.00%	2 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff              @@
##               main    #1825      +/-   ##
============================================
+ Coverage     13.19%   13.20%   +0.01%     
  Complexity      734      734              
============================================
  Files           545      545              
  Lines         15982    15967      -15     
  Branches       1874     1875       +1     
============================================
  Hits           2109     2109              
+ Misses        13681    13666      -15     
  Partials        192      192              

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