fix: card/link colors, title clamp, header icon color; clean distributable zips

- links inherit design colour (Astra was recolouring card titles, destination
  names, header search icon → dark/invisible); buttons keep their colour
- clamp long tour titles + titem descriptions to 2 lines; meta values no-wrap
- theme: reset icon-btn background/colour so header icons show (white)
- add build-zip.php; zips now exclude docs/, build/, *.md, .claude (no
  doc/guidance/AI-revealing files shipped)
- bump plugin 1.8.3, theme 1.0.2

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01J4hNL1PSHxXbu94SCenpKj

viator-collector/includes/class-vc-display.php

@@ -202,6 +202,16 @@ class VC_Display {
 				'.vc-app .tour__text ul{list-style:disc!important;margin:1em 0!important;padding-inline-start:1.5em!important;}',
 				'.vc-app .tour__text ol{list-style:decimal!important;margin:1em 0!important;padding-inline-start:1.5em!important;}',
 				'.vc-app .tour__text li{margin:.25em 0!important;}',
+				// Links must inherit the design colour (Astra colours links with its
+				// theme colour, which turned white card titles/destination names into
+				// coloured text). Buttons keep their own colour.
+				'.vc-app a:not(.btn){color:inherit;}',
+				'.vc-app .tour__text a{color:var(--c-teal);}',
+				// Real tour titles are far longer than the mockup\'s city names — clamp
+				// them and stop price/duration values wrapping mid-number.
+				'.vc-app .dcard__title{display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}',
+				'.vc-app .titem__desc{display:-webkit-box;-webkit-line-clamp:2;line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}',
+				'.vc-app .dcard__meta .meta__v{white-space:nowrap;}',
 				// Typography: force the design font over Astra inside our scopes.
 				'.vc-app,.vc-app h1,.vc-app h2,.vc-app h3,.vc-app h4,.vc-app h5,.vc-app h6,'
 					. '.vc-app p,.vc-app a,.vc-app span,.vc-app li,.vc-app button,.vc-app input,'