chore: bump version to 0.4.0

[thinkall]

Summary

Bump version 0.3.7 → 0.4.0 (minor) reflecting the new user-facing CLI surface added in PR #5 and stabilized in PR #6.

What's in 0.4.0 since 0.3.7 (PR #4)

• PR feat(cli): add featcopilot CLI for agentic usage #5 ΓÇö feat(cli): new agent-friendly featcopilot CLI with info / transform / explain subcommands. Stable JSON contract (stdout=result, stderr=failures, deterministic exit codes), --config JSON file support, parquet-conditional I/O, captured warnings in JSON warnings field. ~4900 lines including featcopilot/cli.py and tests/test_cli.py.
• PR chore: post-CLI cleanup — fix Feature.compute, llm exports, cache silence; add CLI docs #6 ΓÇö chore(post-CLI cleanup): three correctness fixes ΓÇö Feature.compute _SAFE_BUILTINS whitelist (so len/range/int/sum actually work in stored snippets, with proper isolation across calls and a single shared namespace for comprehensions/lambdas), SyncCopilotFeatureClient added to the public featcopilot.llm API to match the OpenAI/LiteLLM sync clients, FeatureCache exception paths now log instead of silently swallowing. New docs/user-guide/cli.md covering the CLI; mkdocs.yml nav updated; sample-output version in docs/getting-started/installation.md corrected. +12 regression tests pinning each new contract.

Files changed

File	Old	New
pyproject.toml	version = "0.3.7"	version = "0.4.0"
docs/getting-started/installation.md	# Output: 0.3.7	# Output: 0.4.0
docs/user-guide/cli.md (info JSON sample)	"version": "0.3.7"	"version": "0.4.0"

Verification

• Pre-commit: clean.
• pip install -e . ΓåÆ import featcopilot; featcopilot.__version__ returns "0.4.0".
• python -m pytest tests/test_cli.py: 135 passed. The test_info_json_emits_supported_options test (and friends) cross-checks payload["version"] == __version__ so the doc sample / pyproject value / runtime value stay in sync.

Release follow-ups (out of scope of this PR)

• Tag v0.4.0 after merge, mirroring the existing v0.3.7 pattern.
• GitHub release notes summarizing PR feat(cli): add featcopilot CLI for agentic usage #5 + PR chore: post-CLI cleanup — fix Feature.compute, llm exports, cache silence; add CLI docs #6.
• PyPI publish if applicable.

[Copilot]

Pull request overview

Bumps the package version to 0.4.0 and updates documentation examples to match, reflecting the expanded user-facing CLI surface introduced in prior PRs.

Changes:

• Update pyproject.toml project version from 0.3.7 to 0.4.0.
• Refresh docs samples to show 0.4.0 in CLI info --json output and installation verification snippet.

Reviewed changes

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

File	Description
pyproject.toml	Bumps the published package version to 0.4.0.
docs/user-guide/cli.md	Updates the sample info --json payload version to 0.4.0.
docs/getting-started/installation.md	Updates the installation verification example output version to 0.4.0.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 89.32%. Comparing base (05b7bf5) to head (42f5367).

Additional details and impacted files

@@           Coverage Diff           @@
##             main       #7   +/-   ##
=======================================
  Coverage   89.32%   89.32%           
=======================================
  Files          38       38           
  Lines        4358     4358           
=======================================
  Hits         3893     3893           
  Misses        465      465           

Flag	Coverage Δ
unittests	89.32% <ø> (ø)

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