PokerForge 1.0.0-beta.1

First early-access build. Highlights:

• Overview, Sessions, Stats, and Population tabs, each validated against
  real PT4 exports.
• Grosvenor Poker (XML) and iPoker Network (text) hand-history support.
• Multi-profile support (File > Switch Profile).
• CSV export for hand lists, By Position, Sessions, and the villain pool.
• Backup/Restore and a Database & Diagnostics panel (Tools menu).
• A Getting Started glossary and Report a Bug link (Help menu).
• Auto-detection of Grosvenor's hand-history folder on first run.
• Single-instance enforcement, a global crash handler, and structured
  logging throughout.
• A standalone Windows installer (per-user, no admin/UAC prompt) built
  with PyInstaller + Inno Setup.
• A "What's New" popup after an update, sourced straight from this file.
• Help > Check for Updates can now read GitHub's own Releases API, not
  just a static manifest URL.
• Database & Diagnostics gained "View Log File" and "Copy Diagnostic
  Info" buttons, for a support conversation that starts from a pasted
  block instead of "where do I even look."
• Added an index for population-wide date-range queries — cut an
  all-time Population tab query from ~3.6s to ~0.5s on a 900k-row
  database.
• Continuous integration (GitHub Actions) runs the full test suite on
  every push.
• Live auto-refresh: a folder watcher imports new hands automatically
  while the app stays open (Settings > "Automatically check for new
  hands while the app is open" to turn it off).
• An automatic, silent database snapshot before each day's first import
  — a safety net separate from Tools > Backup My Data, kept alongside
  the last two.
• Atomic settings.json writes, so a crash mid-save can no longer leave
  a truncated/corrupt settings file behind.
• A progress dialog for the initial hand-history file scan on a large
  first run, instead of a window that looks frozen.
• Sessions tab gained "Export to PDF..." — a printable summary for
  tax/accounting-style records, alongside the existing CSV export.
• Database & Diagnostics now shows the exchange-rate snapshot date used
  for $ conversion.
• Any stat's hand list (villain profile drill-downs, By Position) can
  now be filtered by position, revealing a "Range Grid" button — a 13x13
  heatmap of hole cards actually seen for the filtered hands. Clearly
  labeled as "N of M hands shown," not a claim about someone's true
  range, since folded hands are never revealed by the site. Clicking a
  cell replays every hand behind it, with Previous/Next Hand navigation
  in the replayer for stepping through more than one.
• 221 automated tests covering the stat engine, both parsers, the SQL
  query layer, and the surrounding infrastructure.

Known limitations:

• Only Grosvenor and iPoker Network formats are supported today.
• No code signing yet — Windows SmartScreen will show an "unknown
  publisher" warning. Click More info, then Run anyway.
• No license-key or payment infrastructure yet — the app is fully free
  during early access.