logiguard fork: GPUI xdg-activation keyboard-focus serial fix

Single-commit orphan branch: full zed-industries/zed @ 8c74db0 source tree
with a 3-file patch applied (no upstream history).

Patch (crates/gpui_linux/src/linux/wayland/):
  - serial.rs: add SerialKind::KeyboardEnter
  - client.rs: store wl_keyboard.enter serial; add latest_serial_of()
  - window.rs: activate() uses keyboard-enter serial (Mutter focus gate)

Mutter honors window activation only when the token carries the keyboard-
focus serial from wl_keyboard.enter; GPUI used a stale mouse-press serial.
See docs/tray-window-focus-wayland.md in logiguard.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

.github/workflows/community_champion_auto_labeler.yml

@@ -0,0 +1,113 @@
+name: Community Champion Auto Labeler
+
+on:
+  issues:
+    types: [opened]
+  pull_request_target:
+    types: [opened]
+
+jobs:
+  label_community_champion:
+    if: github.repository_owner == 'zed-industries'
+    runs-on: namespace-profile-2x4-ubuntu-2404
+    steps:
+      - name: Check if author is a community champion and apply label
+        uses: actions/github-script@f28e40c7f34bde8b3046d885e986cb6290c5673b # v7
+        env:
+          COMMUNITY_CHAMPIONS: |
+            0x2CA
+            5brian
+            5herlocked
+            abdelq
+            afgomez
+            AidanV
+            akbxr
+            AlvaroParker
+            amtoaer
+            artemevsevev
+            bajrangCoder
+            bcomnes
+            Be-ing
+            blopker
+            bnjjj
+            bobbymannino
+            CharlesChen0823
+            chbk
+            davewa
+            davidbarsky
+            ddoemonn
+            djsauble
+            errmayank
+            fantacell
+            fdncred
+            findrakecil
+            FloppyDisco
+            gko
+            huacnlee
+            imumesh18
+            injust
+            jacobtread
+            jansol
+            jeffreyguenther
+            jenslys
+            jongretar
+            lemorage
+            lingyaochu
+            lnay
+            marcocondrache
+            marius851000
+            mikebronner
+            ognevny
+            PKief
+            playdohface
+            RemcoSmitsDev
+            rgbkrk
+            romaninsh
+            rxptr
+            Simek
+            someone13574
+            sourcefrog
+            suxiaoshao
+            Takk8IS
+            tartarughina
+            thedadams
+            tidely
+            timvermeulen
+            valentinegb
+            versecafe
+            vitallium
+            WhySoBad
+            ya7010
+            Zertsov
+        with:
+          script: |
+            const communityChampions = process.env.COMMUNITY_CHAMPIONS
+              .split('\n')
+              .map(handle => handle.trim().toLowerCase())
+              .filter(handle => handle.length > 0);
+
+            let author;
+            if (context.eventName === 'issues') {
+              author = context.payload.issue.user.login;
+            } else if (context.eventName === 'pull_request_target') {
+              author = context.payload.pull_request.user.login;
+            }
+
+            if (!author || !communityChampions.includes(author.toLowerCase())) {
+              return;
+            }
+
+            const issueNumber = context.payload.issue?.number || context.payload.pull_request?.number;
+
+            try {
+              await github.rest.issues.addLabels({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: issueNumber,
+                labels: ['community champion']
+              });
+
+              console.log(`Applied 'community champion' label to #${issueNumber} by ${author}`);
+            } catch (error) {
+              console.error(`Failed to apply label: ${error.message}`);
+            }