test(search): pin that nodes_fts.body is indexed raw, not camelCase-split

Only `name` goes through cbm_camel_split; qualified_name, label, file_path
and now `body` are indexed verbatim. `body` is natural-language prose, so
splitting it would mangle the very text the column exists to make findable,
and the unicode61 tokenizer already handles prose correctly.

That invariant lived only in the shape of one format string, where the
splitter is substituted into the name position alone. Nothing failed if a
later edit wrapped the body expression too.

cbm_camel_split("getUserById") yields "getUserById get User By Id", so a
split body would additionally match the fragment "User" -- seeding a
camelCase identifier into the prose and asserting the fragment does NOT
match turns the invariant into a test. The mirror assertion, that `name`
DOES match its fragment, pins the other half so the guard cannot be
satisfied by simply indexing nothing.

Verified binding: wrapping the body expression in cbm_camel_split makes
body:User match 1 instead of 0 and the test fails.

Signed-off-by: Martin Vogel <martin.vogel.tech@gmail.com>

Author: DeusData

tests/test_store_search.c

@@ -1008,10 +1008,8 @@ TEST(store_bfs_reachability_is_not_trail_capped) {
     cbm_store_t *s = cbm_store_open_memory();
     cbm_store_upsert_project(s, "test", "/tmp/test");
 
-    cbm_node_t root = {.project = "test",
-                       .label = "Function",
-                       .name = "Root",
-                       .qualified_name = "test.Root"};
+    cbm_node_t root = {
+        .project = "test", .label = "Function", .name = "Root", .qualified_name = "test.Root"};
     int64_t root_id = cbm_store_upsert_node(s, &root);
 
     enum { NODE_COUNT = 4200 };
@@ -1083,18 +1081,12 @@ TEST(store_bfs_trail_preserves_deeper_match_under_hub_budget) {
     cbm_store_t *s = cbm_store_open_memory();
     cbm_store_upsert_project(s, "test", "/tmp/test");
 
-    cbm_node_t root = {.project = "test",
-                       .label = "Function",
-                       .name = "root",
-                       .qualified_name = "test.root"};
-    cbm_node_t branch = {.project = "test",
-                         .label = "Function",
-                         .name = "branch",
-                         .qualified_name = "test.branch"};
-    cbm_node_t target = {.project = "test",
-                         .label = "Function",
-                         .name = "target",
-                         .qualified_name = "test.target"};
+    cbm_node_t root = {
+        .project = "test", .label = "Function", .name = "root", .qualified_name = "test.root"};
+    cbm_node_t branch = {
+        .project = "test", .label = "Function", .name = "branch", .qualified_name = "test.branch"};
+    cbm_node_t target = {
+        .project = "test", .label = "Function", .name = "target", .qualified_name = "test.target"};
     int64_t root_id = cbm_store_upsert_node(s, &root);
     int64_t branch_id = cbm_store_upsert_node(s, &branch);
     int64_t target_id = cbm_store_upsert_node(s, &target);
@@ -1112,10 +1104,8 @@ TEST(store_bfs_trail_preserves_deeper_match_under_hub_budget) {
     for (int i = 0; i < LEAF_COUNT; i++) {
         char name[32];
         snprintf(name, sizeof(name), "leaf-%d", i);
-        cbm_node_t leaf = {.project = "test",
-                           .label = "Function",
-                           .name = name,
-                           .qualified_name = name};
+        cbm_node_t leaf = {
+            .project = "test", .label = "Function", .name = name, .qualified_name = name};
         int64_t leaf_id = cbm_store_upsert_node(s, &leaf);
         edge.source_id = root_id;
         edge.target_id = leaf_id;
@@ -1658,8 +1648,8 @@ static void seed_prose_nodes(cbm_store_t *s) {
                       .name = "Installation",
                       .qualified_name = "p.README.Installation",
                       .file_path = "README.md",
-                      .properties_json =
-                          "{\"docstring\":\"provisions an ephemeral workstation runner\"}"};
+                      .properties_json = "{\"docstring\":\"provisions an ephemeral "
+                                         "workstation runner via getUserById\"}"};
     cbm_store_upsert_node(s, &sec);
     cbm_node_t fn = {.project = "p",
                      .label = "Function",
@@ -1689,6 +1679,17 @@ TEST(store_fts_rebuild_indexes_docstring_as_body_issue518) {
     /* Identifier indexing is untouched. */
     ASSERT_EQ(fts_match_count(s, "name:plainFunction"), 1);
 
+    /* `body` is PROSE and must be indexed RAW — only `name` gets the camelCase
+     * splitter. cbm_camel_split("getUserById") yields "getUserById get User By
+     * Id", so a split body would additionally match the fragment "User".
+     * Asserting the fragment does NOT match is what makes this test fail if
+     * anyone ever wraps the body expression in cbm_camel_split(). */
+    ASSERT_EQ(fts_match_count(s, "body:getUserById"), 1);
+    ASSERT_EQ(fts_match_count(s, "body:User"), 0);
+    /* ...and the mirror image: `name` IS split, so its fragment DOES match.
+     * Together these pin both halves of the invariant. */
+    ASSERT_EQ(fts_match_count(s, "name:plain"), 1);
+
     cbm_store_close(s);
     PASS();
 }