Add 3 guides, PNG OG images for social sharing, Bonneville OG card

Author: mf4633

BonnevilleSpillwayOperator.html

@@ -11,9 +11,11 @@
 <meta property="og:url" content="https://boardgaminghub.com/BonnevilleSpillwayOperator.html">
 <meta property="og:title" content="Bonneville Spillway Operator">
 <meta property="og:description" content="Free Columbia River dam-operator sim — balance grid, wind, salmon, TDG, lockages.">
-<meta property="og:image" content="https://boardgaminghub.com/og-image.png">
+<meta property="og:image" content="https://boardgaminghub.com/og/bonneville.png">
+<meta property="og:image:width" content="1200">
+<meta property="og:image:height" content="630">
 <meta name="twitter:card" content="summary_large_image">
-<meta name="twitter:image" content="https://boardgaminghub.com/og-image.png">
+<meta name="twitter:image" content="https://boardgaminghub.com/og/bonneville.png">
 <script type="application/ld+json">
 { "@context": "https://schema.org", "@type": "VideoGame", "name": "Bonneville Spillway Operator",
   "description": "Columbia River dam-operator simulation balancing electrical grid demand, wind generation, salmon migration, total dissolved gas, and navigation lockages.",

Chess.html

@@ -25,13 +25,11 @@
   <meta property="og:url" content="https://boardgaminghub.com/Chess.html">
   <meta property="og:title" content="Chess — Free Online Chess">
   <meta property="og:description" content="Free in-browser Chess. Single-player vs AI or 2-player local. No signup.">
-<meta property="og:image" content="https://boardgaminghub.com/og/chess.svg">
+<meta property="og:image" content="https://boardgaminghub.com/og/chess.png">
 <meta property="og:image:width" content="1200">
 <meta property="og:image:height" content="630">
 <meta name="twitter:card" content="summary_large_image">
-<meta name="twitter:image" content="https://boardgaminghub.com/og/chess.svg">
-<meta name="twitter:card" content="summary_large_image">
-  <meta name="twitter:image" content="https://boardgaminghub.com/og-image.png">
+<meta name="twitter:image" content="https://boardgaminghub.com/og/chess.png">
   <script type="application/ld+json">
   { "@context": "https://schema.org", "@type": "VideoGame", "name": "Chess",
     "description": "The royal game. Two-player or vs AI, with all standard rules.",

Drift.html

@@ -14,11 +14,11 @@
 <meta property="og:url" content="https://boardgaminghub.com/Drift.html">
 <meta property="og:title" content="Drift — Daily Word Ladder">
 <meta property="og:description" content="Transform start to target one letter at a time. Daily theme. Free, in-browser.">
-<meta property="og:image" content="https://boardgaminghub.com/og/drift.svg">
+<meta property="og:image" content="https://boardgaminghub.com/og/drift.png">
 <meta property="og:image:width" content="1200">
 <meta property="og:image:height" content="630">
 <meta name="twitter:card" content="summary_large_image">
-<meta name="twitter:image" content="https://boardgaminghub.com/og/drift.svg">
+<meta name="twitter:image" content="https://boardgaminghub.com/og/drift.png">
 <script type="application/ld+json">
 { "@context": "https://schema.org", "@type": "VideoGame", "name": "Drift",
   "description": "Daily word ladder puzzle: transform a 4-letter start word into a 4-letter target word, changing one letter per step, with every intermediate word valid English.",

EclipsePredictor.html

@@ -12,11 +12,11 @@
 <meta property="og:url" content="https://boardgaminghub.com/EclipsePredictor.html">
 <meta property="og:title" content="2026 &amp; 2027 Solar Eclipse Paths on a 3D Globe">
 <meta property="og:description" content="Step through the Aug 12 2026 and Aug 2 2027 total eclipses — paths of totality on a rotatable Earth. Free, no signup.">
-<meta property="og:image" content="https://boardgaminghub.com/og/eclipse.svg">
+<meta property="og:image" content="https://boardgaminghub.com/og/eclipse.png">
 <meta property="og:image:width" content="1200">
 <meta property="og:image:height" content="630">
 <meta name="twitter:card" content="summary_large_image">
-<meta name="twitter:image" content="https://boardgaminghub.com/og/eclipse.svg">
+<meta name="twitter:image" content="https://boardgaminghub.com/og/eclipse.png">
 <script type="application/ld+json">
 {"@context":"https://schema.org","@type":"FAQPage","mainEntity":[
   {"@type":"Question","name":"When is the next total solar eclipse?","acceptedAnswer":{"@type":"Answer","text":"The next total solar eclipse is August 12, 2026, visible from Greenland, Iceland, and northern Spain. The following major total eclipse is August 2, 2027 across Spain, North Africa, and the Middle East — up to 6m23s of totality."}},

Floodline.html

@@ -11,13 +11,11 @@
 <meta property="og:url" content="https://boardgaminghub.com/Floodline.html">
 <meta property="og:title" content="Floodline — California Flood Defense Sim">
 <meta property="og:description" content="Free flood-defense sim with real California water physics and historical scenarios.">
-<meta property="og:image" content="https://boardgaminghub.com/og/floodline.svg">
+<meta property="og:image" content="https://boardgaminghub.com/og/floodline.png">
 <meta property="og:image:width" content="1200">
 <meta property="og:image:height" content="630">
 <meta name="twitter:card" content="summary_large_image">
-<meta name="twitter:image" content="https://boardgaminghub.com/og/floodline.svg">
-<meta name="twitter:card" content="summary_large_image">
-<meta name="twitter:image" content="https://boardgaminghub.com/og-image.png">
+<meta name="twitter:image" content="https://boardgaminghub.com/og/floodline.png">
 <script type="application/ld+json">
 { "@context": "https://schema.org", "@type": "VideoGame", "name": "Floodline",
   "description": "Flood-defense engineering simulator using real California water physics and historical flood scenarios.",

Solitaire.html

@@ -12,11 +12,11 @@
 <meta property="og:url" content="https://boardgaminghub.com/Solitaire.html">
 <meta property="og:title" content="Solitaire — Free Online Klondike">
 <meta property="og:description" content="The classic single-player card game. Free, in-browser, single-file HTML.">
-<meta property="og:image" content="https://boardgaminghub.com/og/solitaire.svg">
+<meta property="og:image" content="https://boardgaminghub.com/og/solitaire.png">
 <meta property="og:image:width" content="1200">
 <meta property="og:image:height" content="630">
 <meta name="twitter:card" content="summary_large_image">
-<meta name="twitter:image" content="https://boardgaminghub.com/og/solitaire.svg">
+<meta name="twitter:image" content="https://boardgaminghub.com/og/solitaire.png">
 <script type="application/ld+json">
 { "@context": "https://schema.org", "@type": "VideoGame", "name": "Solitaire (Klondike)",
   "description": "Build foundations from Ace to King in each suit, using a tableau of seven columns and a draw stock.",

Sudoku.html

@@ -12,11 +12,11 @@
 <meta property="og:url" content="https://boardgaminghub.com/Sudoku.html">
 <meta property="og:title" content="Sudoku — Free Online Daily Puzzle">
 <meta property="og:description" content="Easy to expert puzzles, pencil notes, hint mode, daily seed. Free, in-browser, single-file HTML.">
-<meta property="og:image" content="https://boardgaminghub.com/og/sudoku.svg">
+<meta property="og:image" content="https://boardgaminghub.com/og/sudoku.png">
 <meta property="og:image:width" content="1200">
 <meta property="og:image:height" content="630">
 <meta name="twitter:card" content="summary_large_image">
-<meta name="twitter:image" content="https://boardgaminghub.com/og/sudoku.svg">
+<meta name="twitter:image" content="https://boardgaminghub.com/og/sudoku.png">
 <script type="application/ld+json">
 { "@context": "https://schema.org", "@type": "VideoGame", "name": "Sudoku",
   "description": "Place digits 1–9 so that every row, column, and 3×3 box contains each digit exactly once.",

Wordform.html

@@ -14,11 +14,11 @@
 <meta property="og:url" content="https://boardgaminghub.com/Wordform.html">
 <meta property="og:title" content="Wordform — Free Daily Word Puzzle">
 <meta property="og:description" content="Six guesses, five letters, one daily word. Free, in-browser, single-file HTML.">
-<meta property="og:image" content="https://boardgaminghub.com/og/wordform.svg">
+<meta property="og:image" content="https://boardgaminghub.com/og/wordform.png">
 <meta property="og:image:width" content="1200">
 <meta property="og:image:height" content="630">
 <meta name="twitter:card" content="summary_large_image">
-<meta name="twitter:image" content="https://boardgaminghub.com/og/wordform.svg">
+<meta name="twitter:image" content="https://boardgaminghub.com/og/wordform.png">
 <script type="application/ld+json">
 { "@context": "https://schema.org", "@type": "VideoGame", "name": "Wordform",
   "description": "Guess the 5-letter daily word in six tries, with color-coded letter feedback.",