Fix Gitea pipelines to use authenticated tea CLI without --login flag

Remove redundant --login librete flags from all gt-* pipeline tea commands since
authentication is already configured via tea logins. This simplifies the commands
and prevents potential authentication issues.

Co-Authored-By: Claude Sonnet 4.5 <noreply@anthropic.com>

.wave/pipelines/gt-issue-research.yaml

@@ -27,7 +27,7 @@ steps:
         Parse the input to extract the repository and issue number.
         Use the tea CLI to fetch the issue:
 
-        tea issues list --repo <owner/repo> --login librete -o json -f index,title,body,labels,state,url --limit 50
+        tea issues list --repo <owner/repo> -o json -f index,title,body,labels,state,url --limit 50
 
         Then filter the JSON output for the issue matching the requested number.
 
@@ -224,7 +224,7 @@ steps:
            <markdown_content>
            COMMENT_EOF
 
-           tea comment <number> "$(cat /tmp/comment-body.md)" --repo <owner/repo> --login librete
+           tea comment <number> "$(cat /tmp/comment-body.md)" --repo <owner/repo>
 
         4. Add a footer to the comment:
            ---

.wave/pipelines/gt-issue-rewrite.yaml

@@ -34,10 +34,10 @@ steps:
         1. tea --version
 
         2a. SINGLE ISSUE mode: Parse the repo and number from {{ input }}, then run:
-            tea issues list --repo <REPO> --login librete -o json -f index,title,body,labels,url --limit 50
+            tea issues list --repo <REPO> -o json -f index,title,body,labels,url --limit 50
             Then filter the JSON for the issue matching the requested number.
         2b. BATCH mode:
-            tea issues list --repo {{ input }} --login librete --limit 10 -o json -f index,title,body,labels,url
+            tea issues list --repo {{ input }} --limit 10 -o json -f index,title,body,labels,url
 
         After getting REAL results from Bash, analyze issues and score them.
         In single issue mode, analyze the one issue. In batch mode, analyze all returned issues.
@@ -74,7 +74,7 @@ steps:
         The analysis artifact contains poor_quality_issues from the scan step.
 
         For EACH issue in poor_quality_issues, use tea CLI to fetch the current body:
-        tea issues list --repo {{ input }} --login librete -o json -f index,body --limit 50
+        tea issues list --repo {{ input }} -o json -f index,body --limit 50
         Then filter for the specific issue number.
 
         Then create an enhancement plan with:
@@ -123,12 +123,12 @@ steps:
         tea --version
 
         Step 2: For EACH issue in the plan, use Bash tool to apply changes:
-        - If suggested_title differs from current: tea issues edit <N> --repo {{ input }} --login librete -t "suggested_title"
+        - If suggested_title differs from current: tea issues edit <N> --repo {{ input }} -t "suggested_title"
-        - If body_template is provided: tea issues edit <N> --repo {{ input }} --login librete -d "body_template"
+        - If body_template is provided: tea issues edit <N> --repo {{ input }} -d "body_template"
-        - If suggested_labels: tea issues edit <N> --repo {{ input }} --login librete -L "label1,label2"
+        - If suggested_labels: tea issues edit <N> --repo {{ input }} -L "label1,label2"
 
         Step 3: For each issue, capture the URL from the issue list:
-        tea issues list --repo {{ input }} --login librete -o json -f index,url --limit 50
+        tea issues list --repo {{ input }} -o json -f index,url --limit 50
         Then filter for the specific issue number.
 
         Step 4: Record the results with fields: enhanced_issues (each with issue_number,
@@ -172,7 +172,7 @@ steps:
       type: prompt
       source: |
         For each enhanced issue, verify with:
-        tea issues list --repo {{ input }} --login librete -o json -f index,title,labels --limit 50
+        tea issues list --repo {{ input }} -o json -f index,title,labels --limit 50
         Then filter for the specific issue numbers.
 
         Compile a verification report with fields:

.wave/pipelines/gt-issue-update.yaml

@@ -35,7 +35,7 @@ steps:
         1. tea --version
 
         2. Fetch the full issue:
-           tea issues list --repo REPO --login librete -o json -f index,title,body,labels,state,url --limit 50
+           tea issues list --repo REPO -o json -f index,title,body,labels,state,url --limit 50
            Then filter the JSON for the issue matching NUMBER.
 
         3. Get commits since the issue was created (cap at 100):
@@ -147,14 +147,14 @@ steps:
 
         Step 3: Apply the update:
         - If title_changed is true:
-          tea issues edit <NUMBER> --repo <REPO> --login librete -t "<updated_title>"
+          tea issues edit <NUMBER> --repo <REPO> -t "<updated_title>"
         - Write the updated_body to a temp file, then apply it:
           Write updated_body to /tmp/issue-body.md
-          tea issues edit <NUMBER> --repo <REPO> --login librete -d "$(cat /tmp/issue-body.md)"
+          tea issues edit <NUMBER> --repo <REPO> -d "$(cat /tmp/issue-body.md)"
         - Clean up /tmp/issue-body.md after applying.
 
         Step 4: Verify the update was applied:
-        tea issues list --repo <REPO> --login librete -o json -f index,title,body,url --limit 50
+        tea issues list --repo <REPO> -o json -f index,title,body,url --limit 50
         Then filter for the specific issue number.
 
         Compare the returned title and body against what was intended. Flag any discrepancies.