Extract bos-settings to its own repo; add breadhelp; JSON-driven Hyprland config

bos-settings moves to git.breadway.dev/Breadway/bos-settings (full history
preserved via git-filter-repo) so its release cadence is decoupled from
BOS's own. breadhelp takes its place as this repo's workspace member: a
GTK4 onboarding/help center replacing the old bos-welcome/bos-keybinds
bash scripts with searchable guides, an interactive keybind viewer
(sourced from the new keybinds.toml, not parsed out of hyprland.lua or
hardcoded), a troubleshooting wizard with one-click fixes, and a proper
first-run tour. bos-netcheck extracts bos-welcome's network-check half,
which still needs to run every login independent of breadhelp's own
first-run gating.

hyprland.lua's keybinds/settings/monitors/autostart are now JSON-driven
(binds.json/settings.json/monitors.json/autostart.json) with every
loader pcall-wrapped and falling back to hardcoded defaults per field on
bad or missing config, so bread* apps (bos-settings' new editors, and
breadhelp's keybind viewer) can read/write this config without ever
being able to leave the compositor unable to start.

CI's package.yml now builds breadhelp instead of bos-settings on tag
push; bos-settings needs its own equivalent workflow in its new repo
(not yet set up).

iso/airootfs/etc/skel/.config/hypr/scripts/display/monitors.lua

@@ -0,0 +1,56 @@
+-- scripts/display/monitors.lua — loads monitors.json (an array of monitor
+-- rules) and applies each via hl.monitor(). Failsafe: an empty or entirely
+-- invalid monitors.json is treated the same as a missing one — falling back
+-- to the single generic wildcard rule — because applying *zero* monitor
+-- rules risks an unconfigured/black-screen session, unlike settings.json or
+-- autostart.json where "apply nothing extra" is a legitimate user choice.
+local json = dofile(os.getenv("HOME") .. "/.config/hypr/scripts/lib/json.lua")
+
+local DEFAULT_MONITORS = {
+    { output = "", mode = "preferred", position = "auto", scale = "auto" },
+}
+
+local function valid_entry(e)
+    return type(e) == "table" and type(e.output) == "string"
+end
+
+local function load_monitors()
+    local path = os.getenv("HOME") .. "/.config/hypr/monitors.json"
+    local parsed = json.load(path)
+    if type(parsed) ~= "table" or type(parsed.monitors) ~= "table" then
+        return DEFAULT_MONITORS
+    end
+
+    local valid = {}
+    for _, entry in ipairs(parsed.monitors) do
+        if valid_entry(entry) then
+            valid[#valid + 1] = {
+                output = entry.output,
+                mode = (type(entry.mode) == "string" and entry.mode) or "preferred",
+                position = (type(entry.position) == "string" and entry.position) or "auto",
+                scale = entry.scale ~= nil and entry.scale or "auto",
+                mirror = type(entry.mirror) == "string" and entry.mirror or nil,
+            }
+        end
+    end
+
+    if #valid == 0 then
+        return DEFAULT_MONITORS
+    end
+    return valid
+end
+
+local monitors = load_monitors()
+local applied_any = false
+for _, m in ipairs(monitors) do
+    if pcall(hl.monitor, m) then
+        applied_any = true
+    end
+end
+
+-- Every entry failed to apply (e.g. Hyprland rejected values that still
+-- passed our type checks) — guarantee a usable session rather than leaving
+-- every monitor unconfigured.
+if not applied_any then
+    pcall(hl.monitor, DEFAULT_MONITORS[1])
+end