docs: Move fs_query documentation to the Haiku Book.

Also add a missing include in QueryPoseView.

docs/user/storage/Query.dox

@@ -334,7 +334,7 @@
 	\fn status_t BQuery::SetFlags(uint32 flags)
 	\brief Sets the flags the query will be opened with.
 
-	The possible flags to set are defined in \file fs_query.h.
+	The possible flags to set are defined in \c fs_query.h.
 
 	This methods fails if called after Fetch(). To reuse the BQuery object it
 	must first be reset via Clear().

docs/user/storage/fs_query.dox

@@ -0,0 +1,47 @@
+/*
+ * Copyright 2026, Haiku, Inc. All rights reserved.
+ * Distributed under the terms of the MIT License.
+ *
+ * Corresponds to:
+ *		headers/os/storage/fs_query.h	hrev47402
+ */
+
+
+/*!
+	\file fs_query.h
+	\ingroup storage
+*/
+
+
+/*!
+	\var B_LIVE_QUERY
+	\brief Specifies that the query should be "live".
+
+	\note If you specify this flag, you have to use fs_open_live_query();
+		  it will be ignored in fs_open_query().
+	\since BeOS R3
+*/
+
+
+/*!
+	\var B_QUERY_NON_INDEXED
+	\brief Specifies that the query should be run even if no indexed attributes are queried.
+
+	\note Only enable this feature for non-time-critical things, it might
+		  take a long time to proceed.
+	\note Some query-enabled filesystems might not support this feature.
+	\since Haiku R1
+*/
+
+
+/*!
+	\var B_QUERY_WATCH_ALL
+	\brief Watch all changes to files in live queries, not just additions or removals.
+
+	This is analogous to the \c B_WATCH_ALL node monitor option: instead of only
+	\c B_ENTRY_ADDED and \c B_ENTRY_REMOVED when files are changed such that they
+	enter or leave the query, update messages will be sent for all changes to
+	any files in the query (via \c B_ATTR_CHANGED or \c B_ENTRY_MOVED).
+
+	\since Haiku R1
+*/

headers/os/kernel/fs_query.h

@@ -11,17 +11,11 @@
 
 
 /* Flags for fs_open_[live_]query() */
-
-#define B_LIVE_QUERY		(1 << 0)
-	// Note, if you specify B_LIVE_QUERY, you have to use fs_open_live_query();
-	// it will be ignored in fs_open_query().
-#define B_QUERY_NON_INDEXED	(1 << 1)
-	// Only enable this feature for non time-critical things, it might
-	// take a long time to proceed.
-	// Also, not every file system might support this feature.
-#define B_QUERY_WATCH_ALL	(1 << 2)
-	// Send node monitor (B_ATTR_CHANGED, B_ENTRY_MOVED, etc.) events for all
-	// attributes on all entries in the query.
+enum {
+	B_LIVE_QUERY		= (1 << 0),
+	B_QUERY_NON_INDEXED	= (1 << 1),
+	B_QUERY_WATCH_ALL	= (1 << 2),
+};
 
 
 #ifdef  __cplusplus

src/kits/tracker/QueryPoseView.cpp

@@ -57,6 +57,7 @@ All rights reserved.
 #include "Tracker.h"
 
 #include <fs_attr.h>
+#include <fs_query.h>
 
 
 using std::nothrow;