v0.8.8

• Spec: Automatic object lifetime management is now explicitly
  defined by the spec. Destructors will automatically be called for
  scope-local objects at the end of all scoped constructs, including:
  Plain bash functions, class methods, curly-braced blocks, subshells,
  process substitutions, and all control-flow constructs (if/else, while
  until, for, case, select).
  Some of these cases were not properly handled before, having the spec
  state explicitly what the behavior should be helps us to verify that
  the compiler is behaving properly.
• Spec: Define explicitly that objects instantiated within a supershell
  are owned (and therefore have their lifetimes managed) by the
  code entity containing that supershell, not by the supershell itself.
  Having this defined also illuminated another bug: namely, that the
  compiler didn't do this. This is therefore also a bug fix. To this end,
  an internal adopt() function was added to bpp::bpp_code_entity,
  used by parent scopes to adopt the objects instantiated by supershells
  that they contain.
• Include path handling: The standard library directory is now always the
  last include path, allowing user-supplied -I directories to override
  standard library files. This behavior is now consistent between both the
  compiler and the language server.
• Lexer bug fix: Correctly exit the class-header lexer mode after a class
  declaration that does not inherit from a parent class. This resolves
  a parser failure where ':' no-op commands would appear later in the
  source.
• Redirections and pipes with compound constructs: Fixed a bug where 'if'
  and 'case' statements would incorrectly append delimiters after their
  terminal tokens (that is, after 'fi', 'esac').
  Added relevant test case for redirections and pipes into and out of
  all compound shell constructs (if, while, until, for, select, and case)
• bpp-lsp: The 'UTF16' flag is now correctly propagated to included files.
• Code hygiene (internal): Replaced legacy .rfind()/.find() string checks
  with modern .starts_with()/.contains()
  Removed unused include directives and commented out unused function
  parameters.
  Updated vendored XGetOpt version to 1.0.1
• Documentation: Added comprehensive spec pages on scope and object
  lifetime management.
  Clarified the definition of 'system methods'
  Updated compiler and language manuals to reflect new include path
  behavior.