Enable DOGFOOD_FLAGS for OSS and add fix-it suggestion for failed commands

Two changes addressing agent context visibility and error recovery:

1. Enable DOGFOOD_FLAGS in oss.rs — this activates AgentViewBlockContext,
   which auto-attaches user-executed command output (stdout/stderr/exit code)
   to the AI conversation context. Previously the LLM was blind to any
   commands the user ran via `!` prefix in agent view.

2. Add instant "Fix this error" prompt suggestion when a user-run command
   fails (non-zero exit) in agent view. This lets users hand off errors to
   the agent with one click instead of manually copy-pasting output.

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

app/src/ai/blocklist/passive_suggestions/maa.rs

@@ -304,6 +304,39 @@ impl PassiveSuggestionsModel {
         if is_oz_environment_startup_command {
             return;
         }
+
+        // When a user-run command fails in agent view, offer an instant "fix it"
+        // suggestion so the user can hand off the error to the agent.
+        if FeatureFlag::AgentViewBlockContext.is_enabled()
+            && !block_completed.was_part_of_agent_interaction
+            && !block_completed.serialized_block.exit_code.was_successful()
+            && !block_completed.command.trim().is_empty()
+        {
+            let conversation_id = self
+                .terminal_model
+                .lock()
+                .block_list()
+                .block_at(block_completed.index)
+                .and_then(|block| {
+                    block
+                        .agent_view_visibility()
+                        .agent_view_conversation_id()
+                });
+
+            let prompt = format!(
+                "The command `{}` failed. Diagnose the error and suggest a fix.",
+                block_completed.command.trim()
+            );
+            ctx.emit(PassiveSuggestionsEvent::NewPromptSuggestion {
+                prompt,
+                label: Some("Fix this error".to_string()),
+                request_duration_ms: 0,
+                trigger: None,
+                conversation_id,
+                server_request_token: None,
+            });
+        }
+
         let is_prompt_suggestions_enabled = is_prompt_suggestions_enabled(ctx);
         let is_passive_code_diffs_enabled = is_passive_code_diffs_enabled(ctx);
         if !is_prompt_suggestions_enabled && !is_passive_code_diffs_enabled {

app/src/bin/oss.rs

@@ -24,6 +24,7 @@ fn main() -> Result<()> {
             mcp_static_config: None,
         },
     );
+    state = state.with_additional_features(galaxy_core::features::DOGFOOD_FLAGS);
     if cfg!(debug_assertions) {
         state = state.with_additional_features(galaxy_core::features::DEBUG_FLAGS);
     }