chore(release): 1.0.0 nexus launch prep (#217)

## What

Prep for the 1.0.0 stable release and the Nexus Mods page launch:

- **Nexus page source of truth**: `docs/nexus/description.md`, markdown
authored for conversion to Nexus BBCode at publish time
(`markdown_to_bbcodenm -i docs/nexus/description.md -o <out>`, paste
into the editor's BBCode view). The draft preamble is wrapped in
`converter_ignore` fences so it never reaches the page. The antivirus
note links to the `virus-scan` labeled issue list.
- **Screenshots + branding art**: 2k/4k app screenshots under
`docs/images/screenshots/`, banner and icon artwork under
`docs/images/`, refreshed app icons, and the README hero screenshot
swapped to the new mods-list shot.
- **AV workflow labeling**: `curator-post-release-av` now creates the
`virus-scan` label idempotently and applies it to each release's AV
manual review issue, collecting all VirusTotal scan results under one
filterable list the Nexus page links to. Reviewed by code-reviewer:
PASS, no blockers.
- **Stable releases**: release-please `prerelease` flipped to false so
releases publish as stable from 1.0.0 on; the key remains in place to
flip back for a prerelease cycle. README Status section and
release-strategy reference updated to match.

## Why

The Nexus page needs a maintainable description pipeline (markdown in
git, BBCode out), durable public scan-result links that don't require
per-release manual edits, and stable-marked releases for the public
1.0.0 launch.

Author: ModifAmorphic

.github/workflows/curator-post-release-av.yml

@@ -476,7 +476,12 @@ jobs:
             sed -i 's|VT_ANALYSIS_PLACEHOLDER|Analysis links not available|' issue.md
           fi
 
-          gh issue create --repo "$GH_REPO" --title "$TITLE" --body-file issue.md
+          # Ensure the virus-scan label exists (idempotent; tolerate races)
+          gh label create "virus-scan" --repo "$GH_REPO" \
+            --description "AV manual review + VirusTotal scan results for a release" \
+            --color "FBCA04" 2>/dev/null || true
+
+          gh issue create --repo "$GH_REPO" --title "$TITLE" --body-file issue.md --label "virus-scan"
           echo "created=true" >> $GITHUB_OUTPUT
           echo "Created GitHub issue for AV manual review"
 

.release-please-config.json

@@ -1,7 +1,7 @@
 {
   "release-type": "simple",
   "include-component-in-tag": false,
-  "prerelease": true,
+  "prerelease": false,
   "packages": {
     ".": {}
   }

AGENTS.md

@@ -1527,12 +1527,13 @@ scripts/            release.env: the install manifest (standalone RELEASE_URL /
                     crazy-max/ghaction-virustotal@936d8c5c00afe97d3d9a1af26d017cfdf26800a2
                     action with request_rate 4, requires VIRUSTOTAL_API_KEY,
                     fails on Defender tool errors, missing Defender, VT errors, or
-                    missing VT key, creates a GitHub issue with title "AV manual review
+                    missing VT key, creates a GitHub issue (labeled
+                    `virus-scan`) with title "AV manual review
                     for release <tag>" when VT upload succeeds and returns analysis
                     links; deduplicates against existing open issues with the same
                     title; still post-release and non-gating for publication, but red
                     means scan signal invalid or VT upload failed)
-.release-please-config.json   release-please config (release-type simple, include-component-in-tag false, prerelease true)
+.release-please-config.json   release-please config (release-type simple, include-component-in-tag false, prerelease false; flip prerelease to true to cut prerelease-marked releases again)
 .release-please-manifest.json release-please version manifest (the source-of-truth version; no csproj Version metadata)
 .gitignore          ignores .NET bin/obj, build artifacts, _local/
 ```

README.md

@@ -12,7 +12,7 @@ stays out of the way for vanilla play (launch the game from Steam and it runs
 unmodified).
 
 <div align="center">
-  <img src="docs/images/main.png" alt="Modificus Curator main application window showing the mod list interface">
+  <img src="docs/images/screenshots/mods_detailed_2k.png" alt="Modificus Curator main application window showing the mod list interface">
 </div>
 
 ## Components
@@ -39,9 +39,9 @@ unmodified).
 
 ## Status
 
-Initial releases are published on the
-[releases page](https://github.com/ModifAmorphic/darktide-modificus-curator/releases) and
-are marked as prereleases while the release pipeline settles. To build from
+Releases are published on the
+[releases page](https://github.com/ModifAmorphic/darktide-modificus-curator/releases).
+To build from
 source instead, see [`src/README.md`](src/README.md). The bundled runtime
 artifacts (launcher, shell DLL, mod loader) come from the latest non-draft
 [Mod Relay](https://github.com/ModifAmorphic/darktide-mod-relay)