AKUNUR 2.10.3 - ECHO CAPTURE RESOLUTION CORRECTION

Base
- Built from Akunur 2.10.2.
- Retains the Radius 7 standard opening, optional Free placement and direct Echo Point movement.

Corrected capture distinction
- Capture resolution is determined by the captured piece, not by the capturing piece.
- A captured ordinary stone moves to its radial Echo Point, including when the capturing piece is an Echo Piece.
- When an Echo Piece jumps to the opposite Echo Point and captures an ordinary stone, the captured stone therefore normally returns to the Echo Piece's vacated origin.
- A captured Echo Piece is removed permanently and never echoes, regardless of what captures it.
- Corner and Still Point captures continue to remove the captured stone with no echo.

Interface and logging
- Echo captures of ordinary stones now use the standard "echo to (...)" move-log wording.
- Captures of Echo Pieces continue to state "captured Echo Piece removed".
- Header, feedback version and cache-busting asset versions are updated to 2.10.3.

Compatibility
- Echo Piece movement, ownership and specialist marking are unchanged.
- Friendly occupation of an Echo Point still blocks an Echo jump.
- Undo, repetition and AI simulation continue to include Echo Piece identity.

Version
2.10.3
