feat(cli): Wire --full flag for embed, add sync stage spinners

- Add --full / --no-full flag pair to EmbedArgs with overrides_with
  semantics matching the existing flag pattern. When active, atomically
  DELETEs all embedding_metadata and embeddings before re-embedding.

- Thread the full flag through run_embed -> run_sync so that
  'lore sync --full' triggers a complete re-embed alongside the full
  re-ingest it already performed.

- Add indicatif spinners to sync stages with dynamic stage numbering
  that adjusts when --no-docs or --no-embed skip stages. Spinners are
  hidden in robot mode.

- Update robot-docs manifest to advertise the new --full flag on the
  embed command.

- Replace hardcoded schema version 9 in health check with the
  LATEST_SCHEMA_VERSION constant from db.rs.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

src/cli/commands/embed.rs

@@ -21,6 +21,7 @@ pub struct EmbedCommandResult {
 /// Run the embed command.
 pub async fn run_embed(
     config: &Config,
+    full: bool,
     retry_failed: bool,
 ) -> Result<EmbedCommandResult> {
     let db_path = get_db_path(config.storage.db_path.as_deref());
@@ -37,8 +38,18 @@ pub async fn run_embed(
     // Health check — fail fast if Ollama is down or model missing
     client.health_check().await?;
 
-    // If retry_failed, clear errors so they become pending again
-    if retry_failed {
+    if full {
+        // Clear ALL embeddings and metadata atomically for a complete re-embed.
+        // Wrapped in a transaction so a crash between the two DELETEs can't
+        // leave orphaned data.
+        conn.execute_batch(
+            "BEGIN;
+             DELETE FROM embedding_metadata;
+             DELETE FROM embeddings;
+             COMMIT;",
+        )?;
+    } else if retry_failed {
+        // Clear errors so they become pending again
         conn.execute(
             "UPDATE embedding_metadata SET last_error = NULL, attempt_count = 0
              WHERE last_error IS NOT NULL",