fix the remaining voice review gaps

keep analyst counts, speech, cards, cancellation, pointer capture, tool schema boundaries, and session lifetime consistent
add the exact Alps fallback and focused regression coverage

server/providers/openai/toolDescriptions.js

@@ -543,7 +543,7 @@ export const ACTION_DESCRIPTIONS = {
   },
   analyst_query: {
     description:
-      'Counts, lists, superlatives and attribute filters over records loaded by ENABLED layers — "how many flights over Texas", "biggest fire near LA", "ships headed to Oakland", "next rocket launch". complete:false means the count is a floor ("at least") and rankings cover the records examined; partial names unanswered layers. Items carry lat/lon for a follow-up fly_to_location. ok:false codes: LAYER_OFF (offer to enable), NOT_READY (loading), FOLLOW_UP_MISMATCH (ask again without followUp), UNKNOWN_FIELD/UNKNOWN_SCOPE/BAD_VALUE (retry with the allowed values).',
+      'Counts, lists, superlatives and attribute filters over records loaded by ENABLED layers — "how many flights over Texas", "biggest fire near LA", "ships headed to Oakland", "next rocket launch". A requested list or ranking requires this tool even after set_context_mode returned a Contacts count; that count alone has no requested items. complete:false means the count is a floor ("at least") and rankings cover the records examined; partial names unanswered layers. Items carry lat/lon for a follow-up fly_to_location. ok:false codes: LAYER_OFF (offer to enable), NOT_READY (loading), FOLLOW_UP_MISMATCH (ask again without followUp), UNKNOWN_FIELD/UNKNOWN_SCOPE/BAD_VALUE (retry with the allowed values).',
     $position: 1,
     parameters: {
       properties: {
@@ -554,7 +554,7 @@ export const ACTION_DESCRIPTIONS = {
         },
         scope: {
           description:
-            'Always set it (see WHERE). view = a radius around the view centre ("in view", "nearby"); pointer = "around here/this" while pointing (radius at the cursor); region = "over Texas"; radius with center {lat, lon} = "near <place>"; anywhere = no place ("biggest anywhere", "today"). There is no drawn-area scope yet: say so rather than answering for the view.',
+            'Always set it (see WHERE). Explicit "in view" uses view; "nearby" uses view when Contacts is off. Around the active Contacts subject uses radius with the requested km and center omitted, never view: the five closest within 250 km use scope:{kind:"radius",km:250}, sortBy:"distance", limit:5. For another requested radius use its actual km, not 250. pointer = "around here/this" while pointing (radius at the cursor); region = "over Texas"; radius with center {lat, lon} = "near <place>" or explicit coordinates; anywhere = no place ("biggest anywhere", "today"). Preserve explicit view, named place, pointer and explicit center even while Contacts is active; never invent coordinates. There is no drawn-area scope yet: say so rather than answering for the view.',
           $position: 2,
           properties: {
             name: {
@@ -563,7 +563,13 @@ export const ACTION_DESCRIPTIONS = {
               $position: 1,
             },
             km: {
-              description: 'For kind=radius or pointer.',
+              description:
+                'For kind=radius or pointer: the actual requested kilometers. An active-subject 250 km request uses 250; another requested radius keeps that number.',
+              $position: 1,
+            },
+            center: {
+              description:
+                'Omit for a radius around the active Contacts subject. Supply only an explicitly requested coordinate or a resolved named-place coordinate; never invent 0,0 or replace an explicit center with the subject.',
               $position: 1,
             },
           },