fix(resources): delete executable.yaml, fix resource list columns, update docs

- Delete examples/resource-types/executable.yaml (orphaned artifact referencing
  non-existent ExecutableHandler; flagged in 4 prior reviews as blocking)
- Update agents resource list CLI columns from [ID, Name, Type, Status, Kind,
  Location, Description] to spec-required [Name, ID, Type, Phys/Virt, Children,
  Projects] per specification line 11051
- Lifecycle state for container resources now shown as a note below the table
- Update resource_list_lifecycle_state.feature to remove Status column header
  assertions; add spec-column header scenario
- Add BDD scenario in resource_cli.feature verifying new column headers
- Update CHANGELOG.md and CONTRIBUTORS.md

ISSUES CLOSED: #3077

CHANGELOG.md

@@ -6,6 +6,7 @@ Changed `wf10_batch.robot` to be less likely to create files, and
 `plan_generation_graph.robot` to give more test answers.
 
 ## [Unreleased]
+- **fix(resources): remove unsupported executable resource type and fix resource list columns** (#3077 / PR #3248): Removed `executable` from `LSP_RESOURCE_TYPES` and `BUILTIN_TYPE_NAMES` (the specification defines no such built-in type). Updated `agents resource list` CLI table columns from `[ID, Name, Type, Status, Kind, Location, Description]` to the spec-required `[Name, ID, Type, Phys/Virt, Children, Projects]`. Deleted orphaned `examples/resource-types/executable.yaml`. Lifecycle state for container resources is now displayed as a note below the resource table.
 - **fix(cli): add Read-Only and Writes columns to tool list output** (#1476): Rewrote
   `list_tools()` in `src/cleveragents/cli/commands/tool.py` to render exactly the 5
   spec-required columns (Name, Type, Source, Read-Only, Writes), removed the legacy

CONTRIBUTORS.md

@@ -55,3 +55,4 @@ Below are some of the specific details of various contributions.
   dropped. Includes Behave BDD and Robot Framework regression tests.
 * HAL 9000 has contributed the config-actor combined-format support fix (PR #11232 / issue #11189): added ``_detect_nested_config_actor()``, ``_flatten_config_actor()``, and handling in ``ActorConfiguration.from_blob()`` to transparently flatten the nested ``config.actor`` block from both compact-string and nested-dict forms so v3 detection, schema validation, and canonicalisation see flat data — eliminating the ``"provider is required"`` crash.
 * HAL 9000 has contributed the actor compiler `actor_ref` field fix (issue #1429): corrected `_map_node()` and `compile_actor()` in `src/cleveragents/actor/compiler.py` to read `actor_ref` from the top-level `NodeDefinition.actor_ref` field instead of `node.config.get("actor_ref")`, resolving silent failures on all SUBGRAPH nodes where `subgraph_refs` was always empty and `NodeConfig.subgraph` was always `None`.
+* HAL 9000 has contributed the removal of the unsupported executable resource type (PR #3248 / issue #3077): removed `executable` from `LSP_RESOURCE_TYPES` and `BUILTIN_TYPE_NAMES`, updated `agents resource list` CLI table columns to the spec-required `[Name, ID, Type, Phys/Virt, Children, Projects]`, deleted orphaned `examples/resource-types/executable.yaml`, and updated related BDD test coverage.

examples/resource-types/executable.yaml

@@ -1,29 +0,0 @@
-# Spec reference: docs/adr/ADR-039-container-resource-types.md lines 207-226
-schema_version: "1.0"
-name: executable
-description: "System executable (language runtime, compiler, LSP server binary). Discovered from container or host PATH."
-resource_kind: physical
-sandbox_strategy: none
-user_addable: true
-built_in: true
-cli_args:
-  - name: path
-    type: string
-    required: true
-    description: Absolute path to the executable
-  - name: version
-    type: string
-    required: false
-    description: Executable version if detectable
-parent_types: ["container-exec-env", "fs-directory"]
-child_types: []
-handler: "cleveragents.resource.handlers.executable:ExecutableHandler"
-auto_discovery:
-  trigger_types: ["container-exec-env", "fs-directory"]
-  scan_paths: []
-  lazy: true
-capabilities:
-  read: true
-  write: false
-  sandbox: false
-  checkpoint: false

features/resource_cli.feature

@@ -102,6 +102,14 @@ Feature: Resource CLI commands
     When I run resource list with format "json"
     Then the resource output should be valid JSON
 
+  Scenario: List resources shows spec-required columns
+    Given built-in types are bootstrapped
+    And I run resource add "git-checkout" "local/col-test" with path "/tmp/ctest"
+    When I run resource list
+    Then the resource output should contain "Phys/Virt"
+    And the resource output should contain "Children"
+    And the resource output should contain "Projects"
+
   # ---- Resource Show ----
 
   Scenario: Show a resource by name

features/resource_list_lifecycle_state.feature

@@ -7,10 +7,12 @@ Feature: agents resource list shows devcontainer lifecycle state column
     Given a fresh in-memory resource registry
     And built-in types are bootstrapped
 
-  Scenario: resource list shows "Status" column header
+  Scenario: resource list shows spec-required column headers
     Given a devcontainer-instance resource is registered
     When I run resource list with all flag
-    Then the resource output should contain "Status"
+    Then the resource output should contain "Phys/Virt"
+    And the resource output should contain "Children"
+    And the resource output should contain "Projects"
 
   Scenario: resource list shows "detected (not built)" for a new devcontainer-instance
     Given a devcontainer-instance resource is registered
@@ -68,8 +70,7 @@ Feature: agents resource list shows devcontainer lifecycle state column
   Scenario: resource list shows lifecycle state for container-instance resources
     Given a container-instance resource is registered
     When I run resource list with all flag
-    Then the resource output should contain "Status"
-    And the resource output should contain "detected (not built)"
+    Then the resource output should contain "detected (not built)"
 
   Scenario: resource list succeeds gracefully when lifecycle tracker raises an error
     Given a devcontainer-instance resource is registered

src/cleveragents/cli/commands/resource.py

@@ -860,37 +860,40 @@ def resource_list(
             return
 
         table = Table(title=f"Resources ({len(resources)} total)")
-        table.add_column("ID", style="dim")
         table.add_column("Name", style="cyan")
+        table.add_column("ID", style="dim")
         table.add_column("Type", style="blue")
-        table.add_column("Status", style="yellow")
-        table.add_column("Kind", style="magenta")
-        table.add_column("Location", style="dim")
-        table.add_column("Description", style="dim")
+        table.add_column("Phys/Virt", style="magenta")
+        table.add_column("Children", justify="right")
+        table.add_column("Projects", justify="right")
 
         detected_devcontainers: list[Any] = []
+        lifecycle_states: list[tuple[Any, str]] = []
         for res in resources:
-            desc = res.description or ""
-            if len(desc) > 40:
-                desc = desc[:37] + "..."
             res_id = res.resource_id
             if len(res_id) > 12:
                 res_id = res_id[:12] + "..."
             lifecycle_state = _get_lifecycle_state_str(res)
             if lifecycle_state == "detected (not built)":
                 detected_devcontainers.append(res)
+            if lifecycle_state:
+                lifecycle_states.append((res, lifecycle_state))
             table.add_row(
-                res_id,
                 res.name or "(unnamed)",
+                res_id,
                 res.resource_type_name,
-                lifecycle_state or "",
                 str(res.classification),
-                res.location or "",
-                desc,
+                str(len(res.children)),
+                str(len(res.linked_projects)),
             )
 
         console.print(table)
 
+        for res, state in lifecycle_states:
+            style = "yellow" if state in ("detected (not built)", "failed") else "blue"
+            label = res.name or res.resource_id
+            console.print(f"[{style}]  {label}: {state}[/{style}]")
+
         for res in detected_devcontainers:
             location = res.location or "(unknown path)"
             devcontainer_json = f"{location}/.devcontainer/devcontainer.json"