Replace README with the Human-on-the-Loop overview

.github/docs/context/readme-redesign/INDEX.md

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+---
+source: Task #116 owner-supplied README and overview image attachment set
+retrieved: 2026-08-19
+method: ai-summary
+collector: mochan-tk-task-116-readme-overview
+sensitivity: internal
+status: raw
+---
+
+# README redesign provenance
+
+## Conflicts and open questions
+
+- Resolved conflict: the originally supplied README omitted the scaffold-specific private-repository + GitHub Free fail-closed caveat required by current repo behavior. The owner approved the exact one-paragraph correction inserted after the prerequisites paragraph.
+- The source PNG and its 1536x1024 RGB metadata remain unchanged; no image optimization or factual edit was requested for the image itself.
+
+## Files
+
+- `source.md` — exact attachment metadata, the owner approval record, the exact correction text, and the corrected derived README hash.
+- `INDEX.md` — this index of the provenance pass and the resolved policy conflict record.

.github/docs/context/readme-redesign/source.md

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+---
+source: Task #116 owner-supplied README and overview image attachment set
+retrieved: 2026-08-19
+method: verbatim
+collector: mochan-tk-task-116-readme-overview
+sensitivity: internal
+status: raw
+---
+
+# README redesign source capture
+
+## Attachment metadata
+
+- README draft
+  - `display_name`: `README-revised-copy-paste-install.md`
+  - `method`: `verbatim`
+  - `size_bytes`: `13401`
+  - `sha256`: `5c4c2da300ae32d41d4e827bd819b69209571a23c53468817009941861a1e2f5`
+- README post-correction artifact
+  - `method`: `ai-summary`
+  - `size_bytes`: `13569`
+  - `sha256`: `72bea18c4fcbfc4cda925d9bbfa05390d2aac2eea00aa7da591afe58be32d6a6`
+  - `approval_url`: `https://github.com/mochan-tk/agentic-dev-kit-for-copilot/issues/116#issuecomment-5332593329`
+  - `note`: `Owner-approved exact paragraph inserted after the prerequisites paragraph. All other bytes remain identical to the supplied README source.`
+  - `exact_inserted_paragraph`:
+    ```markdown
+    Public repositories work on any GitHub plan; private repositories require a
+    paid plan because `setup-sources.sh` fails closed for private repositories on
+    GitHub Free.
+    ```
+- Overview image
+  - `display_name`: `a_clean_flat_infographic_diagram_poster_style_i.png`
+  - `method`: `verbatim`
+  - `size_bytes`: `1490062`
+  - `sha256`: `95840911fbdc8765e9c6106efe66a88afad0959fb6cc36103aefc92b86a55ded`
+  - `width_px`: `1536`
+  - `height_px`: `1024`
+  - `mode`: `RGB`
+
+## Editorial decision
+
+- `method: ai-summary`
+- The repository's README replacement is intentionally the owner-supplied Human-on-the-Loop overview draft. The supplied draft and the infographic image satisfy the issue's deterministic validation checks, and the owner approved one factual caveat for current repository behavior at `https://github.com/mochan-tk/agentic-dev-kit-for-copilot/issues/116#issuecomment-5332593329`: public repositories work on any GitHub plan, but private repositories require a paid plan because `setup-sources.sh` fails closed for private repositories on GitHub Free.
+- This collection records the canonical source material, the approved exact paragraph, and the derived README artifact hash after that exact insertion, without private paths or private chat data.