docs: Remove fabricated env var and command

[beonde]

Summary

This PR removes fabricated documentation that didn't match the actual source code.

What Was Wrong

The docs previously mentioned:

1. CAPISCIO_CORE_PATH environment variable - This does NOT exist in the source code
2. capiscio score command - This command does NOT exist

These were hallucinated by the documentation generator and don't reflect actual functionality.

Changes

Removed Fabricated Content

• docs/reference/commands.md - Removed fake CAPISCIO_CORE_PATH env var
• README.md - Removed fake capiscio score command example

Added Accurate Content

• Documented actual wrapper-specific flags: --wrapper-version and --wrapper-clean
• Clarified wrapper behavior: Downloads and proxies to capiscio-core binary

Verification

Verified against actual source code in capiscio_python/cli.py:

• ✅ --wrapper-version exists
• ✅ --wrapper-clean exists
• ❌ CAPISCIO_CORE_PATH does NOT exist
• ❌ capiscio score does NOT exist

Files Changed

• README.md - Removed fake score command
• docs/index.md - Updated wrapper description
• docs/reference/commands.md - Removed fake env var, added real wrapper flags

[github-actions]

✅ All checks passed! Ready for review.

[Copilot]

Pull request overview

This PR corrects fabricated documentation by removing non-existent features and replacing them with accurate information about the wrapper's actual functionality. The changes align the documentation with the source code in src/capiscio/cli.py and src/capiscio/manager.py.

Key Changes

• Removed fictional CAPISCIO_CORE_PATH environment variable that doesn't exist in the source code
• Removed fictional capiscio score command, replacing it with the actual capiscio validate --json syntax
• Added documentation for the actual wrapper-specific flags (--wrapper-version and --wrapper-clean)

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated no comments.

File	Description
README.md	Replaced fabricated capiscio score command with accurate capiscio validate --json command
docs/index.md	Added clarification that this is a wrapper package with no validation logic, enhanced Quick Start section with accurate examples
docs/reference/commands.md	Removed fabricated CAPISCIO_CORE_PATH environment variable, added accurate documentation for core commands with proper examples

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