fix(skills): let a permanently-slotted skill pass preflight without a hotkey

validate_build_skill_icons rejected any required check with a blank hotkey before
the icon was ever looked at, so moving Blessed Hammer to its real home (left slot,
no key) traded one false failure for another. SkillCheck gains a `permanent` flag
for skills that sit on a slot with no hotkey selecting them; the guard skips those
and the icon check inspects the slot as-is.

Preflight now passes clean: blessed_hammer 100% (left), concentration 86.5%,
redemption 92.0%, holy_shield 93.0%, teleport 92.4%.

Co-Authored-By: Claude Opus 5 <[email protected]>

src/utils/skill_preflight.py

@@ -17,6 +17,10 @@ class SkillCheck:
     template: str
     side: str
     required: bool
+    # True when the skill sits permanently on its slot and no hotkey selects it
+    # (Blessed Hammer on left-click). Such a check inspects the slot as-is, so a
+    # blank hotkey is correct rather than a misconfiguration.
+    permanent: bool = False
 
 
 SORC_TEMPLATE_ALIASES = {
@@ -67,7 +71,7 @@ def get_build_skill_checks(config_instance: Config, char_type: str | None = None
         # the hammer sat correctly on the left the whole time. Verify the left slot,
         # and ignore any configured hotkey for it.
         checks.append(SkillCheck(char_type, "blessed_hammer", "",
-                                 "BLESSED_HAMMER", "left", True))
+                                 "BLESSED_HAMMER", "left", True, permanent=True))
         checks.append(SkillCheck(char_type, "concentration",
                                  _configured_hotkey(build_cfg, "concentration"),
                                  "CONCENTRATION", "right", True))
@@ -163,7 +167,7 @@ def validate_build_skill_icons(config_instance: Config, char_type: str | None =
 
     errors = []
     for check in checks:
-        if not check.hotkey:
+        if not check.hotkey and not check.permanent:
             if check.required:
                 errors.append(f"{check.skill} has no configured hotkey")
             continue