docs: fix broken doxygen references and escape HTML tags

- modules.dox: remove references to non-existent sendspin modules
- access.dox: remove reference to deprecated pipewire-media-session
- dma-buf.dox: fix \ref EnumFormat to \ref SPA_PARAM_EnumFormat,
  fix \ref struct to struct \ref for spa_meta_sync_timeline
- pipewire.conf.5.md: add explicit {#synopsis} anchor for internal links
- pipewire-client.conf.5.md: fix audio_converter to audio_adapter ref
- pipewire-jack.conf.5.md: escape <id> HTML tags
- pipewire-props.7.md: fix monitor-prop__ to props__ for card profiles ref
- pipewire-pulse.1.md: fix pipewire-env ref to full anchor name
- pipewire.1.md: fix \ref CPU to \ref spa_cpu

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

doc/dox/config/pipewire-client.conf.5.md

@@ -104,7 +104,7 @@ Some of the properties refer to different aspects of the stream:
 A list of object properties that can be applied to streams can be found in
 \ref props__common_node_properties "pipewire-props(7) Common Node Properties"
 and
-\ref props__audio_converter_properties "pipewire-props(7) Audio Adapter Properties"
+\ref props__audio_adapter_properties "pipewire-props(7) Audio Adapter Properties"
 
 # STREAM RULES  @IDX@ client.conf stream.rules
 

doc/dox/config/pipewire-jack.conf.5.md

@@ -326,9 +326,9 @@ You can use this to link filters to devices. When there is no client connected t
 @PAR@ jack-env  PIPEWIRE_NODE
 \parblock
 ```
-PIPEWIRE_NODE=<id> <application>
+PIPEWIRE_NODE=\<id\> \<application\>
 ```
-Will sort the ports so that only the ports of the node with <id> are listed. You can use this to force an application to only deal with the ports of a certain node, for example when auto connecting.
+Will sort the ports so that only the ports of the node with \<id\> are listed. You can use this to force an application to only deal with the ports of a certain node, for example when auto connecting.
 \endparblock
 
 # AUTHORS

doc/dox/config/pipewire-props.7.md

@@ -906,7 +906,7 @@ See \ref spa_param_port_config for the meaning.
 ## Monitor properties
 
 @PAR@ monitor-prop  alsa.use-acp = true      # boolean
-Use \ref monitor-prop__alsa_card_profiles "ALSA Card Profiles" (ACP) for device configuration.
+Use \ref props__alsa_card_profiles "ALSA Card Profiles" (ACP) for device configuration.
 This autodetects available ALSA devices and configures port and hardware mixers.
 
 @PAR@ monitor-prop  alsa.use-ucm             # boolean

doc/dox/config/pipewire.conf.5.md

@@ -4,7 +4,7 @@ The PipeWire server configuration file
 
 \tableofcontents
 
-# SYNOPSIS
+# SYNOPSIS {#synopsis}
 
 *$PIPEWIRE_CONFIG_DIR/pipewire/pipewire.conf*
 

doc/dox/internals/access.dox

@@ -118,7 +118,4 @@ full access.
 Manager applications (ie. applications that need to modify the graph) will
 set the \ref PW_KEY_MEDIA_CATEGORY property in the client object to "Manager".
 
-For details on the pipewire-media-session implementation of access control,
-see \ref page_media_session.
-
 */

doc/dox/internals/dma-buf.dox

@@ -79,10 +79,10 @@ modifier-aware one, or supporting both.
   On the `param_changed` event check if the modifier key is present and has the flag
   \ref SPA_POD_PROP_FLAG_DONT_FIXATE attached to it. In this case, extract all modifiers
   from the list and do a test allocation with your allocator to choose the preferred
-  modifier. Fixate on that \ref EnumFormat by announcing a \ref SPA_PARAM_EnumFormat with
+  modifier. Fixate on that \ref SPA_PARAM_EnumFormat by announcing a \ref SPA_PARAM_EnumFormat with
   only one modifier in the \ref SPA_CHOICE_Enum and without the
   \ref SPA_POD_PROP_FLAG_DONT_FIXATE flag, followed by the previous announced
-  \ref EnumFormat. This will retrigger the `param_changed` event with an
+  \ref SPA_PARAM_EnumFormat. This will retrigger the `param_changed` event with an
   \ref SPA_PARAM_Format as described below.
   If the \ref SPA_PARAM_Format contains a modifier key, without the flag
   \ref SPA_POD_PROP_FLAG_DONT_FIXATE, it should only contain one value in the
@@ -263,7 +263,7 @@ on the buffer:
 
 When the metadata is available, the SyncObj fds are in the last 2 data planes
 of the buffer, the acquire and release syncobj respectively. You can keep a ref to the
-\ref struct spa_meta_sync_timeline because we will need this later when processing
+struct \ref spa_meta_sync_timeline because we will need this later when processing
 the buffers.
 
 If the producer is allocating buffers, when the stream has the \ref PW_STREAM_FLAG_ALLOC_BUFFERS
@@ -281,11 +281,11 @@ for example, to make things easier later:
 
 ## Use the SPA_META_SyncTimeline when processing buffers
 
-The \ref struct spa_meta_sync_timeline contains 2 fields: the acquire_point and
+The struct \ref spa_meta_sync_timeline contains 2 fields: the acquire_point and
 release_point.
 
 Producers will start a render operation on the DMABUF of the buffer and place
-the acquire_point in the \ref struct spa_meta_sync_timeline. When the rendering is
+the acquire_point in the struct \ref spa_meta_sync_timeline. When the rendering is
 complete, the producer should signal the acquire_point on the acquire SyncObjTimeline.
 
 Producers will also add a release_point on the release SyncObjTimeline. They are

doc/dox/programs/pipewire-pulse.1.md

@@ -30,7 +30,7 @@ Load the given config file (Default: pipewire-pulse.conf).
 
 # ENVIRONMENT VARIABLES
 
-The generic \ref pipewire-env "pipewire(1) environment variables"
+The generic \ref pipewire-env__environment_variables "pipewire(1) environment variables"
 are supported.
 
 In addition:

doc/dox/programs/pipewire.1.md

@@ -167,10 +167,10 @@ Enables the use of systemd for the logger, default true.
 ## Other settings
 
 @PAR@ pipewire-env PIPEWIRE_CPU
-Selects the CPU and flags. This is a bitmask of any of the \ref CPU flags
+Selects the CPU and flags. This is a bitmask of any of the \ref spa_cpu "CPU" flags
 
 @PAR@ pipewire-env PIPEWIRE_VM
-Selects the Virtual Machine PipeWire is running on.  This can be any of the \ref CPU "VM"
+Selects the Virtual Machine PipeWire is running on.  This can be any of the \ref spa_cpu "VM"
 types.
 
 @PAR@ pipewire-env DISABLE_RTKIT