fix(bot): respect teammates opening factions

docs/design/match.md

@@ -122,7 +122,9 @@ Official rule (bwiki 盟约, 更新公告 5114): before a match the player canno
 
 [ASSUMED] Bot purchasing applies one soft 18-point penalty to non-elite, non-DIY tier V/VI shared-pool cards whose
 active bonds overlap another living teammate's opening strategy. Human and AI teammates are treated equally; it
-neither reserves stock nor prevents a stronger purchase. Existing strategy presets and rehearsal counts are unchanged.
+neither reserves stock nor prevents a stronger purchase. A living teammate's selected strategy also reserves its bond
+for bot strategy selection and focus planning before any member is deployed. The reservation ends when that teammate is
+eliminated. Existing strategy presets and rehearsal counts are unchanged.
 
 [ASSUMED] AI reactions are cosmetic social choices, enabled by default and disabled with `SP_BOT_EMOTES=0`. Only
 mixed human/AI matches emit them, through the existing whitelist and cooldown. A human emote gets at most one eligible

docs/history/0.2.4.md

@@ -274,3 +274,10 @@ enemy: picking emitted a unit click with no definition, instead of the tile clic
 engine-canvas regression retains the card/100 HP assertions and also covers another field refresh, live HP loss and
 closing the card when the crate is destroyed. Device metadata supplied by the new entry still wins; changing fields
 does not carry old devices across. Gameplay and allied targeting rules are unchanged.
+
+### 29.15 Opening faction reservations for bots
+
+When a living teammate has already selected a faction strategy, the bot now treats that strategy's bond as an opening
+reservation before the teammate has deployed a member. It avoids selecting the same offered strategy and includes the
+bond in focus planning and the existing soft penalty for shared high-tier cards. The reservation is removed when the
+teammate is eliminated; it does not reserve cards or prevent an immediate merge from winning.