Fix inverted command checks - #60

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

has_power converted the tile size to pixels and then multiplied by 16, so the checked point lay
size x 512 pixels away and every building that needs power failed can_build_here. BWAPI uses
tile size x 16.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

build_addon sent a Build command, can_research denied available tech and
completed buildings, and can_make rejected a builder carrying the required
addon, so no tech was researched and no tank was trained.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

The data tables skipped BWAPI's unused ids but were indexed by id, so
upgrades from Argus_Jewel on read another row or panicked (Chitinous
Plating read None's row), and TechType::None and Nuclear_Strike panicked.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

Both targets sent the untargeted Use_Tech command, so Psionic Storm, Scanner
Sweep, the Archon merge and every other targeted spell failed.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

can_cloak refused unless the unit was already cloaked, the opposite of
BWAPI's check, so no unit could ever cloak.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

The Dark Archon Meld check rejected targets owned by the caster, the
opposite of BWAPI's check, so no Dark Archon could be made.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

The research check applied only to Lurkers, the opposite of BWAPI's, so
unresearched spells passed the check and the game ignored the command.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

can_use_tech_unit skipped the tech's own checks (research, energy), so an
unresearched Mind Control passed and the game ignored it; the Burrowing
check rejected the units that can burrow.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

…ed building

Co-Authored-By: Claude Sonnet <noreply@anthropic.com>

unload_all(Some(pos)) sent Unload_All instead of Unload_All_Position.
can_cancel_research and can_cancel_addon were inverted, CanBuild and
CanUnloadAllPosition rejected a unit exactly when the command type was legal,
and can_morph rejected an idle Hatchery, Lair or Hive without larva, so Lair
and Hive could not be started then. All compared with BWAPI's Templates.h;
tests run the checks on a synthetic game.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

can_build_here tested the blocking unit's own type for being an addon, so any
SCV walking over a Command Center's addon spot refused the Comsat Station.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017rQK8yo5j7dzMXzqMnUuGm

Maps the shared memory via shm_open/mmap and talks to the server over its
Unix socket. RSBWAPI_SERVER_PID connects to that server directly, without
going through the game table.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>