Release 0.2.0

Added

• 6 new apexe serve flags — --tags, --prefix, --acl, --enable-approval, --no-logging, --skip-validation for full McpServerBuilder control from CLI.
• Expanded help fallback — Scanner tries --help all and -h when --help yields few flags. Fixes curl (0 → 12 flags on macOS).
• GNU regex relaxation — Flag regex now matches 1-space indent (\s{1,}) for curl-style help format.
• apexe --man — Generates complete roff man page via apcore_cli::build_program_man_page(), including commands, flags, exit codes, and docs URL.
• Documentation URL — set_docs_url() sets https://github.com/aiperceivable/apexe in help/man output.
• Explorer allow_execute — serve_with_options() enables tool execution from Explorer UI.
• Env var test stability — Global ENV_LOCK Mutex prevents parallel test race conditions on environment variables.

Changed

• Dependencies switched to crates.io — apcore = "0.14", apcore-cli = "0.4", apcore-mcp = "0.11", apcore-toolkit = "0.4". Zero path dependencies.
• ACL opt-in only — --acl <path> required to enable access control. Without it, all tools are allowed (fixes Explorer AclDenied issue).
• require_auth removed — Was silently ineffective without JWT authenticator. Removed to prevent false security assumptions.
• Config override validation — CLI scan_depth (1-5) and timeout (>0) overrides now range-checked with warning on rejection.

Fixed

• Explorer UI empty response — Fixed by using serve_with_options() with ExplorerOptions { explorer: true, allow_execute: true } instead of serve().
• clippy result_large_err — Suppressed on execute_subprocess (Rust 1.94 stricter closure checking).
• Flaky env var tests — Eliminated race condition with ENV_LOCK mutex.

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