chore: enhance PR review workflow and add GLM 5 model

- Add merge conflict detection as step 2 in PR review command, surfacing
  conflicts early before the rest of the review proceeds
- Refine merge recommendations: always fix issues on the PR branch before
  merging rather than merging first and fixing on main afterward
- Update verdict definitions (MERGE / MERGE after fixes / DON'T MERGE)
  with clearer action guidance for each outcome
- Add GLM 5 model to the GLM API provider in registry
- Clean up ui/package-lock.json (remove unnecessary peer flags)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

ui/package-lock.json

@@ -96,7 +96,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
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         "@babel/generator": "^7.28.5",
@@ -2826,7 +2825,6 @@
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       "license": "MIT",
-      "peer": true,
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@@ -2836,7 +2834,6 @@
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       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "csstype": "^3.2.2"
       }
@@ -2847,7 +2844,6 @@
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       "devOptional": true,
       "license": "MIT",
-      "peer": true,
       "peerDependencies": {
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       "dev": true,
       "license": "MIT",
-      "peer": true,
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "bin": {
         "acorn": "bin/acorn"
       },
@@ -3346,7 +3340,6 @@
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       ],
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "baseline-browser-mapping": "^2.9.0",
         "caniuse-lite": "^1.0.30001759",
@@ -3618,7 +3611,6 @@
       "resolved": "https://registry.npmjs.org/d3-selection/-/d3-selection-3.0.0.tgz",
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       "license": "ISC",
-      "peer": true,
       "engines": {
         "node": ">=12"
       }
@@ -3844,7 +3836,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "@eslint-community/eslint-utils": "^4.8.0",
         "@eslint-community/regexpp": "^4.12.1",
@@ -5845,7 +5836,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=12"
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@@ -5961,7 +5951,6 @@
       "resolved": "https://registry.npmjs.org/react/-/react-19.2.3.tgz",
       "integrity": "sha512-Ku/hhYbVjOQnXDZFv2+RibmLFGwFdeeKHFcOTlrt7xplBnya5OGn/hIRDsqDiSUcfORsDC7MPxwork8jBwsIWA==",
       "license": "MIT",
-      "peer": true,
       "engines": {
         "node": ">=0.10.0"
       }
@@ -5971,7 +5960,6 @@
       "resolved": "https://registry.npmjs.org/react-dom/-/react-dom-19.2.3.tgz",
       "integrity": "sha512-yELu4WmLPw5Mr/lmeEpox5rw3RETacE++JgHqQzd2dg+YbJuat3jH4ingc+WPZhxaoFzdv9y33G+F7Nl5O0GBg==",
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "scheduler": "^0.27.0"
       },
@@ -6436,7 +6424,6 @@
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       "dev": true,
       "license": "Apache-2.0",
-      "peer": true,
       "bin": {
         "tsc": "bin/tsc",
         "tsserver": "bin/tsserver"
@@ -6690,7 +6677,6 @@
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       "dev": true,
       "license": "MIT",
-      "peer": true,
       "dependencies": {
         "esbuild": "^0.27.0",
         "fdir": "^6.5.0",