fix: remove duplicate Quarkus entries in agent.yaml and install manifest

The salvage commit on main already registered the four Quarkus skills in
both agent.yaml and manifests/install-modules.json. This branch was adding
a second copy of each (alphabetically misplaced). Reverting both files to
origin/main so the registrations are not duplicated.

agent.yaml

@@ -135,10 +135,6 @@ skills:
   - security-scan
   - skill-comply
   - skill-stocktake
-  - quarkus-patterns
-  - quarkus-security
-  - quarkus-tdd
-  - quarkus-verification
   - springboot-patterns
   - springboot-security
   - springboot-tdd

manifests/install-modules.json

@@ -163,9 +163,6 @@
         "skills/quarkus-verification",
         "skills/rust-patterns",
         "skills/rust-testing",
-        "skills/quarkus-patterns",
-        "skills/quarkus-tdd",
-        "skills/quarkus-verification",
         "skills/springboot-patterns",
         "skills/springboot-tdd",
         "skills/springboot-verification",
@@ -279,7 +276,6 @@
         "skills/security-review",
         "skills/security-scan",
         "skills/security-bounty-hunter",
-        "skills/quarkus-security",
         "skills/springboot-security",
         "skills/evm-token-decimals",
         "the-security-guide.md"