fix: read version.txt before git tags in show_version.js

The script only read version.txt when git describe succeeded, falling
back to hardcoded "0.6.0" when no tags exist (e.g. in forks). This
caused the model version to be 0.6.0 instead of the value in
version.txt, making the fulltext indexer skip all workspaces.

Now reads version.txt first, falls back to git tags, then "0.6.0".

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
Signed-off-by: Don Kendall <kendall@donkendall.com>

Author: dnplkndll

common/scripts/show_version.js

@@ -18,21 +18,26 @@ const path = require('path')
 const exec = require('child_process').exec
 
 function main() {
+  // Read version from version.txt first, fall back to git tag, then default
+  let version
+  try {
+    const versionFilePath = path.resolve(__dirname, 'version.txt')
+    version = fs.readFileSync(versionFilePath, 'utf8').trim()
+  } catch (error) {
+    // version.txt not found
+  }
+
+  if (version) {
+    console.log(version)
+    return
+  }
+
   exec('git describe --tags --abbrev=0', (err, stdout) => {
     if (err !== null) {
       console.log('"0.6.0"')
       return
     }
-    // Take version from file
-    let version
-    try {
-      const versionFilePath = path.resolve(__dirname, 'version.txt')
-      version = fs.readFileSync(versionFilePath, 'utf8').trim()
-    } catch (error) {
-      version = '"0.6.0"'
-    }
-
-    console.log(version)
+    console.log(`"${stdout.trim()}"`)
   })
 }