docs: bootstrap vault, roadmap and research

TMP/Article.md

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+---
+type: article
+status: draft
+created: {{date}}
+updated: {{date}}
+tags: [article]
+sources: []
+---
+
+# {{title}}
+
+> **TL;DR** — one or two sentences: what the reader should learn from this article.
+
+## Introduction
+Why this article exists and who it is for.
+
+## Main part
+
+### Section
+
+## Conclusions
+
+## Sources
+- 
+
+---
+*This article doubles as English writing practice: prefer short, simple sentences; add new vocabulary to the glossary.*

TMP/Decision.md

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+---
+type: decision
+adr: 
+status: proposed
+date: {{date}}
+supersedes: 
+tags: [adr]
+---
+
+# {{title}}
+
+## Context
+The problem or force that makes this decision necessary.
+
+## Options considered
+| Option | Pros | Cons |
+|--------|------|------|
+|  |  |  |
+
+## Decision
+What we chose and why — one paragraph, no hedging.
+
+## Consequences
+- Positive:
+- Negative / risks:
+- Mitigations:
+
+<!-- status: proposed → accepted → superseded by a newer ADR (set `supersedes` on the new one) -->

TMP/DevLog.md

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+---
+type: devlog
+date: {{date}}
+sprint: 
+minutes: 
+tags: [devlog]
+---
+
+# Dev log — {{date}}
+
+## What I did
+- 
+
+## Code review notes
+Reviewer feedback and what I changed because of it.
+
+## Rust notes
+New syntax, borrow-checker battles (→ ErrorJournal), aha-moments.
+
+## English practice
+New words and phrases I used today:
+- *word / phrase* — перевод, my own example sentence
+
+## Next session
+- 

TMP/ErrorJournal.md

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+---
+type: error
+created: {{date}}
+tags: [error-journal, rust]
+---
+
+# {{title}}
+
+## The error
+```text
+paste the exact compiler / runtime error here
+```
+
+## What I expected
+
+## What actually caused it
+
+## The fix
+
+## Self-correction cue
+One-line rule to recognize and fix this error class next time on my own.

TMP/Glossary.md

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+---
+type: glossary
+created: {{date}}
+tags: [glossary, english]
+---
+
+# {{title}}
+
+| Term / phrase | Translation | Where I met it | My example sentence |
+| ------------- | ----------- | -------------- | ------------------- |
+|  |  |  |  |

TMP/Research.md

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+---
+type: research
+status: inbox
+confidence: low
+created: {{date}}
+question: 
+tags: [research]
+---
+
+# {{title}}
+
+## Research question
+What exactly do we need to learn, and why does it matter for viexp?
+
+## Sources
+| # | Source | Kind | Freshness | Key takeaway |
+|---|--------|------|-----------|--------------|
+| 1 |  | docs / code / issue / reddit / blog |  |  |
+
+## Findings
+- 
+
+## Open questions
+- [ ] 
+
+## Outcome
+Which decisions, tasks or articles came out of this research (link them).
+
+<!-- status: inbox → in-progress → analyzed → archived · confidence: low → medium → high -->

TMP/Sprint.md

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+---
+type: sprint
+number: 
+status: planned
+started: 
+finished: 
+hours-planned: 20
+hours-logged: 0
+tags: [sprint]
+---
+
+# Sprint {{title}}
+
+## Theme
+One line: the single sub-skill + app feature this sprint is about.
+
+## App deliverable
+The concrete, demoable thing that must exist at the end of the sprint.
+
+## Rust focus — the vital 20%
+Syntax and concepts to practice, each mapped to real app code.
+
+## Practice drills (20–30 min each)
+- [ ] Drill 1
+- [ ] Drill 2
+- [ ] Drill 3
+
+## English focus
+What and how we practice this sprint (README section, commit messages, article…).
+
+## Session rhythm (45 min)
+5 min — review yesterday's log and errors → 30 min — focused practice → 10 min — DevLog + ErrorJournal.
+
+## Definition of done
+- [ ] Deliverable works
+- [ ] `cargo test` green
+- [ ] clippy clean
+- [ ] Retro filled in below
+
+## Retrospective
+### Shipped
+### Frustrations (link ErrorJournal entries)
+### Hours logged / English notes

TMP/Task.md

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+---
+type: task
+status: todo
+priority: P2
+sprint: 
+gitea-issue: 
+created: {{date}}
+due: 
+tags: [task]
+---
+
+# {{title}}
+
+## Goal
+One sentence describing what must exist when this task is done.
+
+## Acceptance criteria
+- [ ] Criterion 1
+- [ ] Criterion 2
+
+## Notes
+Context, links to research notes and decisions, sketches.
+
+## Log
+- {{date}} — task created.
+
+<!-- status: todo | in-progress | blocked | review | done | cancelled · priority: P0 urgent … P3 nice-to-have -->