v0.2.0

Added

• Public library API: from zenmaster import detect, apply, runner, smu, CpuInfo
• runner.is_flag_arg() to query args that take no value
• vrmcvip-current (VanGogh) for full RyzenAdj arg parity

Changed

• Linux PCI backend now probes writability with a 0x47 register round-trip
  (like UXTU4Linux) instead of only checking that the config file exists, so a
  non-writable bus (no root, lockdown) fails at init with a clear message
• Unified project description to "Adjust power management settings for Ryzen
  CPUs on Linux and Windows"
• Rewrote README with a fuller overview, compatibility table, and an accurate
  RyzenAdj comparison
• Args that require a value now report an error (or show help on the CLI)
  when passed without =value, instead of silently sending 0
• apply() results always include a consistent set of keys (error is
  None on success), making the return shape stable for consumers
• Argument names are normalised to lowercase/hyphen form in apply() results
• Modernised packaging to PEP 639 SPDX license metadata

Fixed

• Windows PM table read now aborts if the final table-transfer retry is still
  rejected, instead of reading stale/garbage physical memory
• Windows SMU polling sleeps briefly after a fast initial spin, avoiding a busy
  loop that pinned a core while waiting for the mailbox
• --skin-temp-limit (a power limit in mW) is no longer multiplied by 256;
  only the temperature args apu-skin-temp and dgpu-skin-temp are scaled,
  matching RyzenAdj
• Negative values (e.g. Curve Optimiser --set-coall=-20) now wrap to
  unsigned 32-bit like RyzenAdj, instead of being clamped to 0
• Flag args (--max-performance, --enable-oc, …) always send 0, ignoring any
  value passed, matching RyzenAdj's boolean handling
• smu.send_* now raise a clear error if called before smu.init()
• smu.init() is idempotent and no longer leaks the Windows PawnIO handle
• CLI shows help for a malformed argument before requiring root
• apply() handles malformed preset strings (unclosed quotes) gracefully
• --table no longer shows duplicate TDC values in EDC rows on Zen 5 tables