rename: The Armory -> The Reliquary; extend spec with essence + cross-over

Renaming: "Armory" read too militaristic for a séance app. Landed on "The
Reliquary" (not "The Threshold" — that name was already taken by the
landing-page back-link).

Spec addendum: added a visible essence currency (earned per summon, spent
on unlocks — distinct from the hidden favor score) and a fourth judgment
verdict, cross_over, for compassionately helping a genuinely benevolent
"stuck" spirit move on rather than just trusting or banishing it. Updates
workstreams B/C/E/F accordingly before any of them are dispatched.

frontend/src/pages/LandingPage.css

@@ -437,7 +437,7 @@
   font-size: 0.7rem;
 }
 
-/* ---------- armory teaser strip ---------- */
+/* ---------- reliquary teaser strip ---------- */
 
 .hero-secondary-links {
   display: flex;
@@ -445,12 +445,12 @@
   gap: 1.6rem;
 }
 
-.landing-section.armory-strip {
+.landing-section.reliquary-strip {
   padding-top: 2.5rem;
   padding-bottom: 2.5rem;
 }
 
-.armory-strip-inner {
+.reliquary-strip-inner {
   display: flex;
   flex-wrap: wrap;
   align-items: center;
@@ -462,7 +462,7 @@
   text-align: center;
 }
 
-.armory-title {
+.reliquary-title {
   font-family: 'Cinzel', serif;
   font-size: 0.85rem;
   font-weight: 700;
@@ -472,13 +472,13 @@
   margin: 0;
 }
 
-.armory-line {
+.reliquary-line {
   font-size: 0.78rem;
   color: rgba(216, 230, 221, 0.55);
   margin: 0;
 }
 
-.armory-link {
+.reliquary-link {
   color: #b26bff;
   font-size: 0.78rem;
   letter-spacing: 0.14em;
@@ -489,7 +489,7 @@
   transition: color 0.2s ease, border-color 0.2s ease, text-shadow 0.2s ease;
 }
 
-.armory-link:hover {
+.reliquary-link:hover {
   color: #d3a8ff;
   border-color: #d3a8ff;
   text-shadow: 0 0 14px rgba(178, 107, 255, 0.6);

frontend/src/pages/LandingPage.tsx

@@ -283,7 +283,7 @@ export function LandingPage() {
                 {t('landing.ctaCodex')}
               </Link>
               <Link className="cta-secondary" to="/shop">
-                {t('landing.ctaShop', { defaultValue: 'visit the armory' })}
+                {t('landing.ctaShop', { defaultValue: 'visit the reliquary' })}
               </Link>
             </div>
           </div>
@@ -343,19 +343,19 @@ export function LandingPage() {
         </section>
       )}
 
-      <section className="landing-section armory-strip">
-        <div className="armory-strip-inner">
-          <h2 className="armory-title">
-            {t('landing.armory.title', { defaultValue: 'HARDWARE FROM THE ARMORY' })}
+      <section className="landing-section reliquary-strip">
+        <div className="reliquary-strip-inner">
+          <h2 className="reliquary-title">
+            {t('landing.reliquary.title', { defaultValue: 'HARDWARE FROM THE RELIQUARY' })}
           </h2>
-          <p className="armory-line">
-            {t('landing.armory.line', {
+          <p className="reliquary-line">
+            {t('landing.reliquary.line', {
               defaultValue:
                 'the Ultimate Quantum Box is coming — a handheld séance instrument that makes the veil knock louder.',
             })}
           </p>
-          <Link className="armory-link" to="/shop">
-            {t('landing.armory.link', { defaultValue: 'enter the armory →' })}
+          <Link className="reliquary-link" to="/shop">
+            {t('landing.reliquary.link', { defaultValue: 'enter the reliquary →' })}
           </Link>
         </div>
       </section>

frontend/src/pages/ShopPage.css

@@ -1,4 +1,4 @@
-/* The Armory — gothic storefront. Tokens: bg #07070d, panel rgba(16,16,26,0.85),
+/* The Reliquary — gothic storefront. Tokens: bg #07070d, panel rgba(16,16,26,0.85),
    phosphor #7cffb2, violet #b26bff, blood #ff3b5c, borders rgba(124,255,178,0.18). */
 
 .shop-page {

frontend/src/pages/ShopPage.tsx

@@ -1,4 +1,4 @@
-// The Armory — storefront for Quantumancy hardware. Flagship 'Ultimate
+// The Reliquary — storefront for Quantumancy hardware. Flagship 'Ultimate
 // Quantum Box' hero, a grid of knock-louder modules, and the reservation
 // manifest (POST /api/shop/waitlist — public, no payment taken).
 // Honest by design: the site works fully without the hardware.
@@ -197,7 +197,7 @@ export function ShopPage() {
         <Link to="/" className="shop-back">
           {t('shop.back', { defaultValue: '← the threshold' })}
         </Link>
-        <h1 className="shop-title">{t('shop.title', { defaultValue: 'THE ARMORY' })}</h1>
+        <h1 className="shop-title">{t('shop.title', { defaultValue: 'THE RELIQUARY' })}</h1>
         <p className="shop-subtitle">
           {t('shop.subtitle', { defaultValue: 'instruments for those who would knock louder' })}
         </p>