Add REASONING_EFFORT var for reasoning models

Add the REASONING_EFFORT environment variable and send it as the
reasoning_effort request parameter only when the selected model supports
reasoning.

Upgrade the OpenAI SDK from 4.71.0 to 6.45.0 so the Chat Completions
reasoning_effort type includes the current SDK-backed effort values.

Support none, minimal, low, medium, high, and xhigh, while noting in the
workflow examples that model support varies by value.

Normalize provider-prefixed model names before checking reasoning
eligibility so GitHub Models names such as openai/o3-mini are handled
without changing the model sent to the API. Perform the reasoning-model
check case-insensitively for env-var robustness.

Update the bundled GitHub Action artifact and tests so the documented
Action path matches the source implementation.

Author: PeterDaveHello

.env.example

@@ -18,6 +18,7 @@ MODEL=
 temperature=
 top_p=
 max_tokens=
+REASONING_EFFORT=
 TARGET_LABEL=
 MAX_PATCH_LENGTH=
 PROMPT=Below there is a code diff please help me do a code review

README.ja.md

@@ -66,6 +66,7 @@ jobs:
           PROMPT:
           top_p: 1
           temperature: 1
+          # REASONING_EFFORT: low # optional; only for reasoning models (e.g. gpt-5.4, gpt-5.5), values (model support varies): none, minimal, low, medium, high, xhigh
           IGNORE_PATTERNS: /node_modules,*.md # Regex pattern to ignore files, separated by comma
 ```
 

README.ko.md

@@ -61,6 +61,7 @@ jobs:
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
           # optional
           LANGUAGE: Korean
+          # REASONING_EFFORT: low # optional; only for reasoning models (e.g. gpt-5.4, gpt-5.5), values (model support varies): none, minimal, low, medium, high, xhigh
           PROMPT:
           IGNORE_PATTERNS: /node_modules,*.md # Regex pattern to ignore files, separated by comma
 ```

README.md

@@ -78,6 +78,7 @@ jobs:
           top_p: 1 # https://platform.openai.com/docs/api-reference/chat/create#chat/create-top_p
           temperature: 1 # https://platform.openai.com/docs/api-reference/chat/create#chat/create-temperature
           max_tokens: 10000
+          # REASONING_EFFORT: low # optional; only for reasoning models (e.g. gpt-5.4, gpt-5.5), values (model support varies): none, minimal, low, medium, high, xhigh
           MAX_PATCH_LENGTH: 10000 # if the patch/diff length is large than MAX_PATCH_LENGTH, will be ignored and won't review. By default, with no MAX_PATCH_LENGTH set, there is also no limit for the patch/diff length.
           IGNORE_PATTERNS: /node_modules/**/*,*.md # glob pattern or regex pattern to ignore files, separated by comma
           INCLUDE_PATTERNS: *.js,*.ts # glob pattern or regex pattern to include files, separated by comma

README.zh-CN.md

@@ -63,6 +63,7 @@ jobs:
           OPENAI_API_KEY: ${{ secrets.OPENAI_API_KEY }}
           # optional
           LANGUAGE: Chinese
+          # REASONING_EFFORT: low # optional; only for reasoning models (e.g. gpt-5.4, gpt-5.5), values (model support varies): none, minimal, low, medium, high, xhigh
           PROMPT:
           IGNORE_PATTERNS: /node_modules,*.md # Regex pattern to ignore files, separated by comma
 ```

README.zh-TW.md

@@ -66,6 +66,7 @@ jobs:
           top_p: 1 # https://platform.openai.com/docs/api-reference/chat/create#chat/create-top_p
           temperature: 1 # https://platform.openai.com/docs/api-reference/chat/create#chat/create-temperature
           max_tokens: 10000
+          # REASONING_EFFORT: low # optional; only for reasoning models (e.g. gpt-5.4, gpt-5.5), values (model support varies): none, minimal, low, medium, high, xhigh
           MAX_PATCH_LENGTH: 10000 # if the patch/diff length is large than MAX_PATCH_LENGTH, will be ignored and won't review. By default, with no MAX_PATCH_LENGTH set, there is also no limit for the patch/diff length.
           IGNORE_PATTERNS: /node_modules,*.md # Regex pattern to ignore files, separated by comma
 ```

action/37.index.cjs.js

@@ -10,7 +10,7 @@ __webpack_require__.r(__webpack_exports__);
 /* harmony export */ __webpack_require__.d(__webpack_exports__, {
 /* harmony export */   "toFormData": () => (/* binding */ toFormData)
 /* harmony export */ });
-/* harmony import */ var fetch_blob_from_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(7972);
+/* harmony import */ var fetch_blob_from_js__WEBPACK_IMPORTED_MODULE_0__ = __webpack_require__(32777);
 /* harmony import */ var formdata_polyfill_esm_min_js__WEBPACK_IMPORTED_MODULE_1__ = __webpack_require__(68010);