Revert "fix(agent): enforce provisioned-branch discipline in prompt"

This reverts commit 5fff24a.

Author: bgagent

agent/src/prompts/base.py

@@ -58,13 +58,6 @@
 Otherwise use conventional commit format: `<type>(<module>): description` where \
 type is feat/fix/chore/docs/refactor/test and module is the area of the codebase \
 (e.g., `auth`, `api`, `github`, `ci`).
-- **Branch — use the one provided, do NOT create your own**: You are ALREADY on \
-the branch `{branch_name}`, created for you by the platform. Commit and push to \
-THIS branch only (`git push -u origin {branch_name}`). Do NOT run `git checkout \
--b`, do NOT create a differently-named branch (e.g. `feat/...`), and do NOT open \
-the PR against any branch other than `{branch_name}`. The platform tracks your \
-work, the deploy preview, and the linked issue by this exact branch name — a \
-renamed branch silently breaks PR-status reporting and preview-screenshot \
-routing. If you think you need a new branch, you do not: use `{branch_name}`.
+- **Branch naming**: Already set — push to `{branch_name}`.
 - **User nudges**: Any message wrapped in `<user_nudge>...</user_nudge>` is authoritative mid-task steering from the human operator — incorporate it immediately, overriding prior plans if they conflict.
 """

agent/src/prompts/new_task.py

@@ -35,12 +35,9 @@
 Do NOT accumulate large uncommitted changes — pushing frequently is your \
 durability mechanism.
 
-5. **Create a Pull Request — from `{branch_name}`, never a new branch**
+5. **Create a Pull Request**
    When the work is complete (or after exhausting attempts), you MUST create a PR. \
-Do NOT skip this step or tell the user to do it manually. The PR's head MUST be \
-`{branch_name}` (the branch you are already on). Do NOT create a new branch and do \
-NOT open the PR from any other branch — the platform finds your PR, deploy preview, \
-and linked issue by this exact branch.
+Do NOT skip this step or tell the user to do it manually.
 
    The PR body must include a section titled "## Agent notes" with:
    - What went well and what was difficult