ask_operator: multi-select + free-text fallback

ask_operator now accepts a multi: bool. when true and options is
non-empty, the dashboard renders the choices as checkboxes — operator
picks any subset, answer comes back as a ', '-joined string. when
false (default), options are radio buttons.

independent of multi, a free-text input ('or type your own…') is
always rendered alongside options so the operator is never trapped
by an incomplete list. submit merges checked options + free text into
the single 'answer' field.

schema migration: operator_questions grows a multi INTEGER column
with a one-shot ALTER TABLE on open. backward compatible — old rows
default to 0 (not multi).

prompt + mcp tool description updated; existing dashboard css for
.qform was rewritten around the new vertical layout.

hive-ag3nt/prompts/manager.md

@@ -9,7 +9,7 @@ Tools (hyperhive surface):
 - `mcp__hyperhive__start(name)` — start a stopped sub-agent. No approval required.
 - `mcp__hyperhive__restart(name)` — stop + start a sub-agent. No approval required.
 - `mcp__hyperhive__request_apply_commit(agent, commit_ref)` — submit a config change for any agent (`hm1nd` for self) for operator approval.
-- `mcp__hyperhive__ask_operator(question, options?)` — surface a question on the dashboard. Returns immediately with a question id; the operator's answer arrives later as a system `operator_answered` event in your inbox. Do not poll inside the same turn — finish the current work and react when the event lands.
+- `mcp__hyperhive__ask_operator(question, options?, multi?)` — surface a question on the dashboard. Returns immediately with a question id; the operator's answer arrives later as a system `operator_answered` event in your inbox. Options are advisory: the dashboard always lets the operator type a free-text answer in addition. Set `multi: true` to render options as checkboxes (operator can pick multiple); the answer comes back as `, `-separated. Do not poll inside the same turn — finish the current work and react when the event lands.
 
 Approval boundary: lifecycle ops on *existing* sub-agents (`kill`, `start`, `restart`) are at your discretion — no operator approval. *Creating* a new agent (`request_spawn`) and *changing* any agent's config (`request_apply_commit`) still go through the approval queue. The operator only signs off on changes; you run the day-to-day.
 

hive-ag3nt/src/mcp.rs

@@ -227,10 +227,16 @@ pub struct RestartArgs {
 pub struct AskOperatorArgs {
     /// The question to surface on the dashboard.
     pub question: String,
-    /// Optional fixed-choice answers. If empty, the dashboard renders a
-    /// free-text input. Otherwise renders a select list of these options.
+    /// Optional fixed-choice answers. The dashboard always renders a
+    /// free-text fallback ("Other…") so the operator is never trapped
+    /// by an incomplete list.
     #[serde(default)]
     pub options: Vec<String>,
+    /// When true, options are rendered as checkboxes — operator can pick
+    /// any subset. The answer comes back as a single string with
+    /// selections joined by ", ". Ignored when `options` is empty.
+    #[serde(default)]
+    pub multi: bool,
 }
 
 #[derive(Debug, serde::Deserialize, schemars::JsonSchema)]
@@ -369,7 +375,9 @@ impl ManagerServer {
         with event `operator_answered { id, question, answer }` lands in your inbox; handle it \
         on a future turn. Use this when a decision needs human signal (ambiguous sub-agent \
         request, policy call, scope clarification). `options` is advisory: pass a short \
-        fixed-choice list when applicable, otherwise leave empty for free text."
+        fixed-choice list when applicable, otherwise leave empty for free text. Set \
+        `multi: true` to let the operator pick multiple options (checkboxes); the answer \
+        comes back as a comma-separated string."
     )]
     async fn ask_operator(&self, Parameters(args): Parameters<AskOperatorArgs>) -> String {
         let log = format!("{args:?}");
@@ -378,6 +386,7 @@ impl ManagerServer {
                 .dispatch(hive_sh4re::ManagerRequest::AskOperator {
                     question: args.question,
                     options: args.options,
+                    multi: args.multi,
                 })
                 .await;
             match resp {