⬆️ version bump to v4.5

- Update obioptions.Version from "Release 4.4.29" to "/v/ Release v5"
- Update version.txt from 4.29 → .30
(automated by Makefile)

autodoc/docmd/pkg/obidefault/progressbar.md

@@ -0,0 +1,33 @@
+# Progress Bar Control Module (`obidefault`)
+
+This Go package provides a simple, global mechanism to enable or disable progress bar display across an application.
+
+## Core Functionality
+
+- **`ProgressBar()`**: Returns `true` if progress bars are *enabled* (i.e., when `__no_progress_bar__` is `false`).  
+- **`NoProgressBar()`**: Returns the current state of `__no_progress_bar__`, i.e., whether progress bars are *disabled*.  
+- **`SetNoProgressBar(b bool)`**: Sets the global flag `__no_progress_bar__`. Passing `true` disables progress bars; passing `false` enables them.  
+- **`NoProgressBarPtr()`**: Returns a pointer to the internal `__no_progress_bar__` variable, allowing direct read/write access (e.g., for reflection or UI binding).
+
+## Design Intent
+
+- Centralizes progress bar visibility control in one place.
+- Supports both boolean query/set and pointer-based manipulation for flexibility (e.g., CLI flags, config binding).
+- Uses a *negative* flag name (`__no_progress_bar__`) internally to default progress bars **on** (i.e., `false` → enabled).
+
+## Usage Example
+
+```go
+// Disable progress bars globally:
+obidefault.SetNoProgressBar(true)
+
+// Check status:
+if !obidefault.ProgressBar() {
+    log.Println("Progress bars are disabled.")
+}
+```
+
+## Notes
+
+- Thread-safety is *not* guaranteed; concurrent access should be externally synchronized.
+- The double underscore prefix (`__no_progress_bar__`) signals internal/private usage per Go convention (though not enforced).