DEVX-45: docs: remove stale .taskid file fallback references

.gitea/workflows/ci.yml

@@ -120,8 +120,7 @@ jobs:
 
   auto-merge:
     # Auto-merge runs after all CI checks pass. It reads the task ID
-    # from the branch name (falling back to .taskid file), validates
-    # the PR title, and squash-merges.
+    # from the branch name, validates the PR title, and squash-merges.
     needs: [quality, detect-changes, pr-review]
     if: github.event_name == 'pull_request'
     runs-on: docker

docs/tech/architecture.md

@@ -188,7 +188,7 @@ repos that only need a Gitea release.
 ### `auto_merge.py`
 
 Auto-merges a PR when all CI checks pass. Reads the task ID from the branch
-name (falling back to `.taskid` file), validates the PR title format against
+name, validates the PR title format against
 the Vikunja task title, extracts the conventional commit message from PR
 commits, and squash-merges with title `{PREFIX}-N <conventional commit>`.
 

docs/tech/ci-cd-workflow.md

@@ -93,8 +93,7 @@ Depends on `quality`, `detect-changes`, and `pr-review`. The final job in the
 CI workflow. Runs `python -m devx.ci.auto_merge` with the branch name, PR
 title, repository, and PR number:
 
-1. **Read task ID** from branch name (e.g., `DEVX-12-fix-foo` → `DEVX-12`),
-   falling back to `.taskid` file for branches without a task ID prefix
+1. **Read task ID** from branch name (e.g., `DEVX-12-fix-foo` → `DEVX-12`)
 2. **Validate PR title format** — must be `{PREFIX}-N: <vikunja task title>`
 3. **Validate PR title matches Vikunja task** — fetches the Vikunja task and
    compares the title
@@ -330,8 +329,7 @@ On failure, the `notify_failure` step creates a Gitea issue.
 ### `auto_merge.py`
 
 Auto-merge PR when all CI checks pass. Reads task ID from the branch name
-(e.g., `DEVX-12-fix-foo` → `DEVX-12`), falling back to `.taskid` file for
-branches without a task ID prefix. Validates PR title format, checks the
+(e.g., `DEVX-12-fix-foo` → `DEVX-12`). Validates PR title format, checks the
 Vikunja task exists and the title matches, extracts the conventional commit
 message from PR commits, and squash-merges with
 `{PREFIX}-N <conventional commit>` title.

docs/user/cli-commands.md

@@ -18,7 +18,7 @@ devx molecule --help  # show molecule commands
 ### `devx ci auto-merge`
 
 Auto-merge a PR when all CI checks pass. Reads the task ID from the branch
-name (falling back to `.taskid` file), validates the PR title format against
+name, validates the PR title format against
 the Vikunja task title, extracts the conventional commit message from PR
 commits, and squash-merges with `{PREFIX}-N <conventional commit>` title.