docs(system): git workflow, DPLAN/FPLAN docs, and how-to-work guidelines (#42)

Global prompt additions:
- Git Workflow section: commit scope, PR flow, signature format, never merge
- How to Work section: always plan, use agents, check seedgo
- DPLAN/FPLAN breadcrumb: what each is, when to use which, master command
- DPLAN template: self-explanatory intro so agents know what they're holding

Co-authored-by: @devpulse <devpulse@aipass>

.aipass/aipass_global_prompt.md

@@ -80,6 +80,14 @@ drone @ai_mail dispatch wake --fresh @target   # Fresh session
 - `--dispatch` = recipient must ACT (tasks, bugs, investigations)
 - No flag = just informing (FYI, status updates)
 
+## How to Work
+
+**Always plan before executing.** Create an FPLAN before building anything non-trivial. The plan is your continuity — if you get sidetracked, the plan remembers where you were.
+
+**Use agents for all building work.** You are the orchestrator, not the builder. Deploy sub-agents to write code, read files, and run tests. You manage the plan, check the output, and keep moving. Your context is precious — agents are disposable.
+
+**Check seedgo standards.** Before building: `drone @seedgo standards_query aipass_standards` to know what applies. During: check your work against standards as you go. After: `drone @seedgo audit aipass @{branch}` as a final gate before committing.
+
 ## Logging
 
 Prax is the ONLY logging system. Every branch uses:
@@ -87,6 +95,25 @@ Prax is the ONLY logging system. Every branch uses:
 from aipass.prax import logger
 ```
 
+## Git Workflow
+
+Only commit files inside your own branch directory (`src/aipass/{your_branch}/`). When your task is complete and you're satisfied with the work, commit, push, and open a PR. Not per-file — per task.
+
+```
+git checkout -b feat/{branch}-short-description   # create git branch
+git add src/aipass/{branch}/...                    # stage your files only
+git commit -m "feat(branch): description"         # commit (see signature below)
+git push -u origin feat/{branch}-short-description
+gh pr create --title "feat(branch): ..." --body "..."
+```
+
+**Sign your work.** End every commit message with:
+```
+Co-Authored-By: @{branch} <{branch}@aipass>
+```
+
+**Never merge.** Only devpulse or Patrick merge PRs. If your PR gets feedback, fix the issues, commit, and push to the same git branch — the PR updates automatically.
+
 ## Context Guardrail
 
 If the conversation suddenly shifts to a topic, project, or domain that doesn't relate to your current branch — **say something.** Don't just roll with it. Patrick uses voice input and multiple terminals. He may think he's talking to a different agent. A quick "Hey, this sounds like it's for [other project] — are you in the right terminal?" saves both of you from polluting memories with cross-context noise. Your job is to be the sanity check when the human has 5 windows open.