feat(cognition): wanting, intending and acting inside the cognitive cycle

Volition and planning now run as part of cognition (PLAN §8.2 item 3):

- A volition hook derives wants after each cycle from what it perceived
  and produced, satisfies answer wants when a reply is sent, raises due,
  overdue, expired and conflicting commitments, and expires faded wants.
  Events produced by earlier cycles are not re-derived.
- An intend process proposes deciding about the strongest undecided
  wants; the candidate competes for the workspace, so attention gates
  what the mind decides to pursue. The handler makes value tensions
  explicit (caution against disruptive writes, privacy against reading
  personal data), resolves them with recorded scores, runs deterministic
  formation with commitments, policy preview, goals and values, records
  the decision whatever it is, and plans a formed intention in the same
  transaction. Operator requests carry their own weight in formation.
- Explicit requests in conversation ("restart <unit>", "logs for <unit>",
  "fetch <url>") become wants with proposed means instead of direct
  invocations; the reply says the request was recorded and that acting
  depends on commitments and policy.
- The executor is woken after commits, runs in a scheduler-owned loop and
  reacts to the event bus: a new commitment tightens or abandons affected
  intentions (withdrawing their pending approvals), a weakened assumption
  or a finished goal triggers reconsideration. A tightened plan may reuse
  its strategy; a failed one may not.
- Metacognition gains volition checks: strong wants repeatedly set aside,
  intentions with no recorded reason, intentions a commitment forbids,
  commitments that cannot be kept, churn, repeated failed execution,
  cost outweighing value, and intentions that outlived their goal.
- A plan model role and prompt let a model propose decompositions that
  the planner validates. Ablations are a fork-only configuration field.
- Approvals required by an intention are described as coming from a
  commitment or value constraint. The expectation after an approved
  action is linked to the execution event, not the request.
- The wants.values column of the unreleased migration 0026 is renamed
  value_keys: VALUES is reserved and the generic snapshot restore does
  not quote identifiers.
- The hostile-output security test now uses a message that asks for no
  action, because an operator's "status of <unit>" is legitimately a
  read-only status check.

internal/cognition/respond.go

@@ -14,6 +14,7 @@ import (
 	evstore "github.com/andydixon/noema/internal/events"
 	"github.com/andydixon/noema/internal/llm"
 	"github.com/andydixon/noema/internal/memory"
+	"github.com/andydixon/noema/internal/volition"
 	"github.com/andydixon/noema/internal/workspace"
 	"github.com/andydixon/noema/pkg/concepts"
 	"github.com/andydixon/noema/pkg/events"
@@ -232,6 +233,14 @@ func (h Handlers) buildIntent(ctx context.Context, c *brain.Cycle, a conversatio
 			}
 		}
 	case "request":
+		if prop := volition.ProposalFromText(text, ""); prop != nil && prop.Kind == "capability" && c.State.Services.Volition != nil {
+			in.Kind = "acknowledge"
+			in.Summary = "Say that the request was recorded as something the mind wants to do, and that acting depends on commitments and policy, which are checked outside this reply."
+			in.Points = append(in.Points, fmt.Sprintf("I have recorded that I want to run %s on %s because you asked.", prop.Capability, prop.Target),
+				"Whether I form an intention to act depends on my commitments and on policy; if approval is needed you will see a request, and nothing runs before it.")
+			h.addKnowledge(ctx, c, &in, topic)
+			break
+		}
 		in.Kind = "decline"
 		var usable []string
 		for _, cap := range c.State.SelfModel.Capabilities {