Add --console-depth CLI flag and console.depth bunfig option (#21016)

Co-authored-by: Claude Bot <claude-bot@bun.sh>
Co-authored-by: Claude <noreply@anthropic.com>
Co-authored-by: jarred-sumner-bot <220441119+jarred-sumner-bot@users.noreply.github.com>
Co-authored-by: Jarred Sumner <jarred@jarredsumner.com>

docs/api/console.md

@@ -2,6 +2,25 @@
 **Note** — Bun provides a browser- and Node.js-compatible [console](https://developer.mozilla.org/en-US/docs/Web/API/console) global. This page only documents Bun-native APIs.
 {% /callout %}
 
+## Object inspection depth
+
+Bun allows you to configure how deeply nested objects are displayed in `console.log()` output:
+
+- **CLI flag**: Use `--console-depth <number>` to set the depth for a single run
+- **Configuration**: Set `console.depth` in your `bunfig.toml` for persistent configuration
+- **Default**: Objects are inspected to a depth of `2` levels
+
+```js
+const nested = { a: { b: { c: { d: "deep" } } } };
+console.log(nested);
+// Default (depth 2): { a: { b: [Object] } }
+// With depth 4: { a: { b: { c: { d: 'deep' } } } }
+```
+
+The CLI flag takes precedence over the configuration file setting.
+
+## Reading from stdin
+
 In Bun, the `console` object can be used as an `AsyncIterable` to sequentially read lines from `process.stdin`.
 
 ```ts