feat(release): declare the RunicNPC API the bridge needs (runicnpc stage 4, D224)

overlay.toml gains runicnpc_api = 3, the release folds it into manifest.json,
and checkPlugin.js holds it equal to RunicNpcApiNeeded in the code. The
installer's bundle carries the latest RunicNPC release that answers it.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01E14m6SuuY6i1vASFeGDBeY

.gitea/workflows/release.yml

@@ -338,6 +338,10 @@ jobs:
           # requires_plugins = ["Kits", "ZoneManager"] is already a JSON array.
           # One line, quoted strings only; anything else fails the check below.
           REQUIRES="$(grep -m1 -E '^requires_plugins[[:space:]]*=' overlay.toml | sed -E 's/^[^=]*=[[:space:]]*//')"
+          # The RunicNPC API the bridge's npc.* commands need (runicnpc stage 4). 0 when
+          # absent, which a bundle reads as "carries no RunicNPC".
+          RUNICNPC_API="$(grep -m1 -E '^runicnpc_api[[:space:]]*=' overlay.toml | sed -E 's/[^0-9]//g')"
+          RUNICNPC_API="${RUNICNPC_API:-0}"
           [ -n "$PROTOCOL" ]   || { echo "::error::could not read protocol from overlay.toml"; exit 1; }
           [ -n "$MIN_OXIDE" ]  || { echo "::error::could not read min_oxide_version from overlay.toml"; exit 1; }
           [ -n "$MIN_CARBON" ] || { echo "::error::could not read min_carbon_version from overlay.toml"; exit 1; }
@@ -354,6 +358,7 @@ jobs:
             --arg     min_oxide  "${MIN_OXIDE}" \
             --arg     min_carbon "${MIN_CARBON}" \
             --argjson requires   "${REQUIRES}" \
+            --argjson runicnpc   "${RUNICNPC_API}" \
             --argjson files      "${FILES}" \
             '{
                component:          $component,
@@ -364,6 +369,7 @@ jobs:
                min_oxide_version:  $min_oxide,
                min_carbon_version: $min_carbon,
                requires_plugins:   $requires,
+               runicnpc_api:       $runicnpc,
                files:              $files
              }' > "${STAGE}/manifest.json"
           echo "----- manifest.json -----"