docs(pi): unify split package trees; move live OMP pages to core

Two directories documented one concept (pi npm packages): top-level
packages/ (browser-use, permission-system) and pi/packages/ (peon,
web-access, subagents). Merged into pi/packages/ — one row per package
in a single index, detail pages kept as archive records. The root
index's 'OMP packages and skills' section was doubly wrong (packages/
was pi, not OMP); it becomes a Skills tooling section pointing at the
consolidated /skills/ tree.

Moved the two LIVE omp pages out of the retired-harness banner:
pi/statusline.md -> core/statusline.md, pi/subagent-limits.md ->
core/subagent-limits.md (both document omp behavior against
agent/config.yml + the installed bundle; pi/index.md itself admitted
the mis-shelf). Retargeted every inbound link (core/index, system/
dankserver, log x2, pi/index, settings x2, moved files' own xrefs).

Refs #29

omp-docs/pi/packages/index.md

@@ -1,29 +1,27 @@
 # Pi Packages
 
-Pi extends its functionality through npm packages installed via `pi install`. Each package provides extensions, skills, prompts, or themes.
+Pi extended itself through npm packages (`pi install npm:<name>`), each
+bundling extensions, skills, prompts, or themes. The harness is retired
+(2026-10-18); this page is the merged census of what was installed — one row
+per package, detail pages kept as historical records.
 
-## Installed Packages
+## Installed packages
 
-| Package | Version | Description |
-|---------|---------|-------------|
-| [[pi-peon|pi-peon]] | 0.1.1 | CESP/OpenPeon sound-pack player for pi lifecycle events |
-| [[pi-web-access|pi-web-access]] | 0.22.0 | Web search, URL fetching, GitHub cloning, PDF extraction, video understanding |
+| Package | Version | Detail | What it did |
+|---------|---------|--------|-------------|
+| `@wierdbytes/pi-peon` | 0.1.1 | [Pi Peon](pi-peon.md) | CESP/OpenPeon sound-pack player for pi lifecycle events. |
+| `pi-web-access` | 0.22.0 | [Pi Web Access](pi-web-access.md) | Web search, URL fetching, GitHub cloning, PDF extraction, video understanding. |
+| `pi-subagents` | 0.36.0 | [Pi Subagents](pi-subagents.md) | Core subagent delegation — chains, parallel execution, TUI clarification. |
+| `pi-browser-use` | — | [Pi Browser Use](pi-browser-use.md) | Browser automation wrapping chrome-devtools-mcp behind a `browser_` prefix. |
+| `pi-permission-system` | — | [Pi Permission System](pi-permission-system.md) | Permission enforcement and policy configuration; upstream docs are 10 interlinked pages. |
 
-## Core Extension
+## Where the concepts live now
 
-| Package | Version | Description |
-|---------|---------|-------------|
-| [[pi-subagents|pi-subagents]] | 0.36.0 | Core subagent delegation — chains, parallel execution, TUI clarification |
-
----
+* Subagent delegation → [OMP Subagent Limits & Fan-out Policy](/core/subagent-limits.md) (live caps).
+* Skill/package distribution → [Skills](/skills/index.md) (Agent Skills standard + `skills` CLI).
+* Web access → the `web/searxng` provider and MCP tooling; see [Agentic web research](/agentic-web-research/index.md).
 
 ## See Also
 
-- [[settings|settings]] — Package configuration in settings.json
-- [pi](../index.md) — Pi configuration overview
-
-  * [Pi Peon](pi-peon.md) — CESP/OpenPeon sound-pack player for pi lifecycle events — peons, GLaDOS, battlecruisers, and 300+ community sound packs.
-
-  * [Pi Subagents](pi-subagents.md) — Core pi extension for delegating tasks to subagents with chains, parallel execution, and TUI clarification.
-
-  * [Pi Web Access](pi-web-access.md) — Web search, URL fetching, GitHub cloning, PDF extraction, and video understanding for Pi. Zero-config with Exa MCP.
+- [Pi Settings System](/core/settings.md) — where these packages were registered (`settings.json` archive).
+- [Pi Configuration](/pi/index.md) — pi-era overview.