Terra in base section; fix Hyprland via solopasha COPR

- Terra repo is added right after RPM Fusion in the base setup (it carries
  noctalia + mangowc). Modules keep calling add_terra_repo so they still
  work standalone; it is a no-op when terra-release is present.
- Hyprland was retired from the Fedora repos after F42 (dependency churn);
  the module could never resolve 'hyprland' on F44. It now enables the
  solopasha/hyprland COPR first — the de facto standard for F43/44 — and
  treats the accessory packages (hyprpaper/hyprlock/waybar/mako/wofi/
  xwayland-satellite) as optional so a name drift warns instead of aborting.
- README updated.

README.md

@@ -68,7 +68,7 @@ Each module pulls in `lib/` by relative path, so it works both ways.
 | TWM | Source | Session type | Notes |
 |---|---|---|---|
 | `niri` | Fedora repos + Terra (for `noctalia`) | Wayland | Ships its own session entry |
-| `hyprland` | Fedora repos | Wayland | Ships its own session entry |
+| `hyprland` | **copr solopasha/hyprland** | Wayland | Retired from Fedora repos after F42 |
 | `mango` | **Terra repo only** | Wayland | Session entry written if the package lacks one |
 | `chadwm` | **built from source** | **X11** | dwm fork; not packaged anywhere for Fedora |
 
@@ -115,9 +115,11 @@ OS_RELEASE_FILE=/tmp/fake-os-release ./setup.sh --yes --de=xfce --twm=chadwm
 
 ## Known limitations
 
-* `noctalia` and `mangowc` come from **Terra**, a third-party repo. The
-  package layout there is not guaranteed across Fedora releases; `mango` aborts
-  with build-from-source instructions if the package is missing.
+* `noctalia` and `mangowc` come from **Terra**, and `hyprland` from the
+  **solopasha** COPR — all third-party sources. Their package layout is not
+  guaranteed across Fedora releases; `mango` aborts with build-from-source
+  instructions if the package is missing. Terra is added in the base section
+  (and re-checked idempotently inside the modules that need it).
 * Package *names* are not verified by installation in this repo's test harness —
   only control flow is. First real run on a fresh F44 box is the actual proof.
 * `gnome-tweaks`/`gnome-extensions-app`, `wofi`, `waybar`, `hyprlock` and friends