PAIDEIA MCP v0.5.4

Extends PAIDEIA source repo parsing and documents the exact Alt local stdio setup screen.\n\nHighlights:\n- Parser now supports Claude command markdown under plugins/paideia/commands/.md.\n- Parser now supports PAIDEIA-Hermes command markdown under commands/.md plus mapped Hermes skills.\n- Source-only helpers such as doctor are preserved as extra_actions.\n- Manifest now exposes extra_actions and updated Alt SDK bridge wording.\n- README now gives exact Korean Alt local-stdio form values: command, one-argument-per-line args, name, working directory, and env var.\n\nVerified with:\n- python3 -m pytest -q: 43 passed\n- python3 scripts/smoke_stdio.py: 26 tools, 5 prompts, 2 resources, 16 manifest actions\n- Direct parser checks against local PAIDEIA, PAIDEIA-Hermes, PAIDEIA-codex, and PAIDEIA-opencode clones.