docs: align man pages with code + fill documentation gaps (0.16.0 audit)

A full man<->code consistency audit surfaced options, format placeholders
and CSS classes that were implemented but undocumented, documented but not
implemented (some causing fmt crashes when copied from examples), and
defaults that disagreed with the code. This aligns the docs with the code
and fixes a few genuine code gaps.

Docs:
- Add the missing waybar-user(5) man page (and register it in meson.build)
- Document previously-undocumented options/placeholders/CSS across many
  modules (custom image-path/image-name/icon-size, graph_type/width/
  datapoints; battery smooth-power; wireplumber format-source/only-physical;
  mpris {position}/prefer-album-artist; network {signalStrengthApp}/compact
  bandwidth; pulseaudio {source_volume}/{source_desc}; upower {temperature}/
  {model}/{native-path}; wwan {power_state}/{imei}; tray ignore-list; and
  many CSS state classes: .sink-muted, .source-muted, .workspace-hover, etc.)
- Correct documented defaults to match the code (hyprland format {name},
  gamemode {count}, cpu-graph interval 5, cava input_delay 4, niri taskbar
  icon-size 16, disk/gps/wayfire formats, menu-actions object type, ...)
- Remove placeholders/options that do not apply (custom-graph {icon}/format/
  format-icons/rotate) and fix crashing examples (wwan {mode}, gps
  format-no-fix); note cava background/foreground/continuous_rendering are
  cava-config-file options

Code:
- bluetooth: accept the documented `controller` key as a synonym of
  `controller-alias` (the option was silently ignored)
- mango/workspaces: supply the documented `{name}` fmt arg (was missing ->
  fmt::format threw)
- privacy: read `tooltip` as a bool (was guarded on isString(), so the
  documented `tooltip: false` was silently ignored)

All man pages validated with scdoc 1.11.4. Not compiled locally (no gtkmm);
C++ build relies on CI.

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

man/waybar-custom-graph.5.scd

@@ -38,9 +38,8 @@ Addressed by *custom-graph/<name>*
 	If a *signal* is defined then the script will run once on startup and will only update with a signal.
 
 *restart-interval*: ++
-	typeof: integer or float ++
-	The restart interval (in seconds). ++
-	Minimum value is 0.001 (1ms). Values smaller than 1ms will be set to 1ms. ++
+	typeof: integer ++
+	The restart interval (in whole seconds). ++
 	Can't be used with the *interval* option, so only with continuous scripts. ++
 	Once the script exits, it'll be re-executed after the *restart-interval*.
 
@@ -50,18 +49,20 @@ Addressed by *custom-graph/<name>*
 	The number is valid between 1 and N, where *SIGRTMIN+N* = *SIGRTMAX*. ++
 	If no interval is defined then a signal will be the only way to update the module.
 
-*format*: ++
+*graph_type*: ++
 	typeof: string ++
-	default: {text} ++
-	The format, how information should be displayed. On {text} data gets inserted.
+	default: line ++
+	The style of graph to render. One of *line*, *bar* or *gauge*.
 
-*format-icons*: ++
-	typeof: array ++
-	Based on the set percentage, the corresponding icon gets selected. The order is *low* to *high*.
-
-*rotate*: ++
+*width*: ++
 	typeof: integer ++
-	Positive value to rotate the text label (in 90 degree increments).
+	default: 100 ++
+	The width of the graph in pixels.
+
+*datapoints*: ++
+	typeof: integer ++
+	default: 20 ++
+	The number of most recent values to retain and plot on the graph.
 
 *on-click*: ++
 	typeof: string ++
@@ -99,7 +100,7 @@ Addressed by *custom-graph/<name>*
 *tooltip-format*: ++
 	typeof: string ++
 	The tooltip format. If specified, overrides any tooltip output from the script in *exec*. ++
-	Uses the same format replacements as *format*.
+	See *FORMAT REPLACEMENTS*.
 
 *escape*: ++
 	typeof: bool ++
@@ -146,11 +147,13 @@ $text\\n$tooltip\\n$class*
 
 # FORMAT REPLACEMENTS
 
+These replacements are available in *tooltip-format*.
+
 *{text}*: Output of the script.
 
-*{percentage}* Percentage which can be set via a json return type.
+*{alt}*: The *alt* value from a json return type.
 
-*{icon}*: An icon from 'format-icons' according to percentage.
+*{percentage}* Percentage which can be set via a json return type.
 
 # EXAMPLES