Declare GraphQL variables in fetch_reviews.sh

The previous query body referenced `$NUMBER_OF_THREADS` and
`$NUMBER_OF_COMMENTS_PER_THREAD` inside `gh api graphql -f query='…'`
without declaring them in the `query(...)` header or forwarding them
via `-F`, so every invocation came back with
`Variable $NUMBER_OF_THREADS is not defined`.  The script could not
have completed a single fetch in this state.

Declare `$prComments`, `$reviews`, `$threads`, and `$comments` as
proper GraphQL Int parameters and forward the corresponding
`$NUMBER_OF_*` shell variables — the ones SKILL.md tells the user to
substitute — via matching `-F` flags.  Also add a `#!/usr/bin/env bash`
shebang so the script is self-contained, and quote
`-F number="$PR_NUMBER"` for consistency with the other parameters.

The single-quoted redirect path that
fedify-dev#765 (comment)
flagged is already addressed: the prior refactor pointed the redirect
target at the double-quoted `"$FETCHED_FILE"` shell variable, so the
literal `$PR_NUMBER` directory bug it described can no longer occur.

Addresses:

 -  fedify-dev#765 (comment)
 -  fedify-dev#765 (comment)

Assisted-by: Claude Code:claude-opus-4-7

Author: 2chanhaeng

.agents/skills/get-reviews/fetch_reviews.sh

@@ -1,12 +1,21 @@
+#!/usr/bin/env bash
 PR_PATH="plans/$PR_NUMBER"
 FETCHED_PATH="$PR_PATH/fetched"
 mkdir -p "$FETCHED_PATH"
 TIMESTAMP=$(date +"%m%d%H%M")
 FETCHED_FILE="$FETCHED_PATH/$TIMESTAMP.json"
-gh api graphql -f query='query($owner: String!, $repo: String!, $number: Int!) {
+gh api graphql -f query='query(
+  $owner: String!,
+  $repo: String!,
+  $number: Int!,
+  $prComments: Int!,
+  $reviews: Int!,
+  $threads: Int!,
+  $comments: Int!
+) {
   repository(owner: $owner, name: $repo) {
     pullRequest(number: $number) {
-      comments(first: $NUMBER_OF_PR_COMMENTS) {
+      comments(first: $prComments) {
         nodes {
           id
           databaseId
@@ -16,7 +25,7 @@ gh api graphql -f query='query($owner: String!, $repo: String!, $number: Int!) {
           createdAt
         }
       }
-      reviews(first: $NUMBER_OF_REVIEWS) {
+      reviews(first: $reviews) {
         nodes {
           id
           databaseId
@@ -27,14 +36,14 @@ gh api graphql -f query='query($owner: String!, $repo: String!, $number: Int!) {
           createdAt
         }
       }
-      reviewThreads(first: $NUMBER_OF_THREADS) {
+      reviewThreads(first: $threads) {
         nodes {
           id
           isResolved
           isOutdated
           path
           line
-          comments(first: $NUMBER_OF_COMMENTS_PER_THREAD) {
+          comments(first: $comments) {
             nodes {
               id
               databaseId
@@ -52,7 +61,14 @@ gh api graphql -f query='query($owner: String!, $repo: String!, $number: Int!) {
       }
     }
   }
-}' -F owner=fedify-dev -F repo=fedify -F number=$PR_NUMBER \
-| jq . > "$FETCHED_FILE"
+}' \
+  -F owner=fedify-dev \
+  -F repo=fedify \
+  -F number="$PR_NUMBER" \
+  -F prComments="$NUMBER_OF_PR_COMMENTS" \
+  -F reviews="$NUMBER_OF_REVIEWS" \
+  -F threads="$NUMBER_OF_THREADS" \
+  -F comments="$NUMBER_OF_COMMENTS_PER_THREAD" \
+  | jq . > "$FETCHED_FILE"
 
 # cspell: ignore MMDDHHMM