Apollo Places: enrich insights with personal place name + notes

Optional integration with the sibling Apollo project's user-defined
Places (name + lat/lon + radius_m + description + category). When
APOLLO_API_BASE_URL is set, the per-photo location resolver folds the
most-specific containing Place into the LLM prompt's location string —
"Home (My house in Cambridge) — near Cambridge, MA" rather than the
city name alone. Smallest-radius wins; Apollo sorts server-side via
/api/places/contains, so the carousel badge in Apollo and the prompt
string here always agree.

Adds an agentic tool `get_personal_place_at(latitude, longitude)` that
the LLM can call during chat continuation. Tool description tells the
model the call returns the user's free-text notes, not just a name.
Deliberately narrow — no enumerate-all variant, lat/lon required.

Unset APOLLO_API_BASE_URL = legacy Nominatim-only path, tool is not
registered. 5 s timeout; all errors degrade silently.

Tests: 5 unit tests for compose_location_string (Apollo only, Nominatim
only, both, both-with-description, neither).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

src/state.rs

@@ -1,5 +1,6 @@
 use crate::ai::insight_chat::{ChatLockMap, InsightChatService};
 use crate::ai::openrouter::OpenRouterClient;
+use crate::ai::apollo_client::ApolloClient;
 use crate::ai::{InsightGenerator, OllamaClient, SmsApiClient};
 use crate::database::{
     CalendarEventDao, DailySummaryDao, ExifDao, InsightDao, KnowledgeDao, LocationHistoryDao,
@@ -155,6 +156,11 @@ impl Default for AppState {
         let sms_api_token = env::var("SMS_API_TOKEN").ok();
         let sms_client = SmsApiClient::new(sms_api_url, sms_api_token);
 
+        // Apollo Places integration. Optional — when APOLLO_API_BASE_URL is
+        // unset, ApolloClient is constructed disabled and the insight
+        // generator silently falls through to the legacy Nominatim path.
+        let apollo_client = ApolloClient::new(env::var("APOLLO_API_BASE_URL").ok());
+
         // Initialize DAOs
         let insight_dao: Arc<Mutex<Box<dyn InsightDao>>> =
             Arc::new(Mutex::new(Box::new(SqliteInsightDao::new())));
@@ -193,6 +199,7 @@ impl Default for AppState {
             ollama.clone(),
             openrouter.clone(),
             sms_client.clone(),
+            apollo_client.clone(),
             insight_dao.clone(),
             exif_dao.clone(),
             daily_summary_dao.clone(),
@@ -295,6 +302,7 @@ impl AppState {
             None,
         );
         let sms_client = SmsApiClient::new("http://localhost:8000".to_string(), None);
+        let apollo_client = ApolloClient::new(None);
 
         // Initialize test DAOs
         let insight_dao: Arc<Mutex<Box<dyn InsightDao>>> =
@@ -327,6 +335,7 @@ impl AppState {
             ollama.clone(),
             None,
             sms_client.clone(),
+            apollo_client.clone(),
             insight_dao.clone(),
             exif_dao.clone(),
             daily_summary_dao.clone(),