chore: rename to scopeql-parser

[tisonkun]

No description provided.

[Copilot]

Pull request overview

This PR renames the package from scopeql-lexer to scopeql-parser, aligning the package name with its broader scope. The rename includes updating workspace configuration, package metadata, and import statements.

• Updated package name from scopeql-lexer to scopeql-parser across all configuration files
• Updated import statements in test files to use the new package name
• Added new source files and documentation for the renamed package

Reviewed changes

Copilot reviewed 5 out of 21 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
Cargo.toml	Updated workspace member from scopeql-lexer to scopeql-parser
Cargo.lock	Updated package name reference in lock file
scopeql-parser/Cargo.toml	Renamed package, updated rust-version to 1.90.0, added description and readme fields
scopeql-parser/README.md	Added new README with package description
scopeql-parser/src/lib.rs	Added new library entry point exporting tokenizer types
scopeql-parser/src/tokenizer.rs	Added tokenizer implementation with TokenKind enum and Tokenizer struct
scopeql-parser/tests/tests.rs	Updated imports from scopeql_lexer to scopeql_parser
scopeql-parser/tests/snapshots/*.snap (14 files)	Added snapshot test files, but source paths still reference old package name

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