refactor: remove workflow_mode setting — autopilot is autonomous by definition

Autopilot already detects its own invocation context and runs elaboration
autonomously. The workflow_mode setting was redundant and added unnecessary
configuration surface.

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: jwaldrip

.ai-dlc/settings.yml

@@ -6,8 +6,6 @@ git:
 
 visual_review: false
 
-workflow_mode: autonomous
-
 providers:
   ticketing:
     type: github-issues

plugin/schemas/settings.schema.json

@@ -21,12 +21,6 @@
 			"$ref": "#/definitions/providersConfig",
 			"description": "External system providers for spec, ticketing, design, and comms"
 		},
-		"workflow_mode": {
-			"type": "string",
-			"enum": ["interactive", "autonomous"],
-			"default": "interactive",
-			"description": "interactive: pause for user approval at key decision points. autonomous: proceed automatically, only pause on blockers."
-		},
 		"granularity": {
 			"type": "string",
 			"enum": ["coarse", "standard", "fine"],

plugin/skills/autopilot/SKILL.md

@@ -39,8 +39,7 @@ Autopilot is designed for straightforward features. It pauses and returns contro
 1. **Pause on blockers or ambiguity** - Never guess. If elaboration or execution encounters something unclear, stop and ask.
 2. **Pause if elaboration generates more than 5 units** - Confirm scope with the user before proceeding to execution. More than 5 units suggests the feature may be too large or complex for autopilot.
 3. **Pause before creating PR** - Always confirm with the user before delivery. Show a summary of what was built across all units.
-4. **Config-aware mode** - Uses `workflow_mode: autonomous` from project config (`.ai-dlc/settings.yml`) if available. Falls back to interactive mode for any decision that could go wrong.
-5. **No silent failures** - If any phase fails, stop immediately and report what happened. Do not attempt to recover autonomously from phase-level failures.
+4. **No silent failures** - If any phase fails, stop immediately and report what happened. Do not attempt to recover autonomously from phase-level failures.
 
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