feat(cmd): add ask option to commands

Add an `ask` attribute to commands that shows a y/n confirmation
before executing. If the user declines, the command is skipped but
the task continues with the next command.

Example:
```yaml
cmds:
  - cmd: echo "Deploying..."
    ask: "Deploy to production?"
  - task: run-migrations
    ask: "Run database migrations?"
```

Behavior:
- Default: asks for y/n confirmation
- --yes: auto-confirms all asks
- --dry: shows commands without asking

This differs from task-level `prompt:` which cancels the entire task
if declined. Command-level `ask:` only skips the individual command.

website/src/docs/reference/schema.md

@@ -741,6 +741,8 @@ tasks:
         platforms: [linux, darwin]
         set: [errexit]
         shopt: [globstar]
+        if: '[ "$CI" = "true" ]'
+        ask: "Run this command?"
 ```
 
 ### Task References
@@ -857,6 +859,36 @@ tasks:
         if: '[ "{{.ITEM}}" != "b" ]'
 ```
 
+### Command Confirmations
+
+Use `ask` to request user confirmation before executing a command. If the
+user declines (answers "n" or "no"), the command is skipped but the task
+continues.
+
+```yaml
+tasks:
+  deploy:
+    cmds:
+      - cmd: echo "Deploying to production..."
+        ask: "Deploy to production?"
+      - cmd: echo "Updating database..."
+        ask: "Run database migrations?"
+      - echo "Done!"  # No ask, always runs
+```
+
+| Flag | Behavior |
+|------|----------|
+| (none) | Asks user for y/n confirmation |
+| `--yes` | Auto-confirms all asks |
+| `--dry` | Shows commands without asking |
+
+:::note
+
+This is different from the task-level `prompt:` which cancels the entire task
+if declined. Command-level `ask:` only skips the individual command.
+
+:::
+
 ## Shell Options
 
 ### Set Options

website/src/public/schema.json

@@ -340,6 +340,10 @@
         "if": {
           "description": "A shell command to evaluate. If the exit code is non-zero, the command is skipped.",
           "type": "string"
+        },
+        "ask": {
+          "description": "A y/n confirmation shown before executing this task call. If declined, the task call is skipped.",
+          "type": "string"
         }
       },
       "additionalProperties": false,
@@ -381,6 +385,10 @@
         "if": {
           "description": "A shell command to evaluate. If the exit code is non-zero, the command is skipped.",
           "type": "string"
+        },
+        "ask": {
+          "description": "A y/n confirmation shown before executing this command. If declined, the command is skipped.",
+          "type": "string"
         }
       },
       "additionalProperties": false,