feat(gitea): migrate to published gitea-mcp package from Gitea PyPI

mcp-servers/gitea/ thinned to venv wrapper — source code removed,
package installed from registry. run.sh updated from mcp_server.server
to gitea_mcp.server. requirements.txt points to Gitea PyPI.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

docs/ARCHITECTURE.md

@@ -21,7 +21,7 @@ Plugin marketplace for Claude Code. 20 plugins across 5 domains, 5 shared MCP se
 
 | Server | Plugins Using It | External System |
 |--------|-------------------|-----------------|
-| gitea | projman, pr-review | Gitea (issues, PRs, wiki) |
+| gitea | projman, pr-review | Gitea (issues, PRs, wiki) — uses published `gitea-mcp` package |
 | netbox | cmdb-assistant | NetBox (DCIM, IPAM) |
 | data-platform | data-platform | PostgreSQL, dbt |
 | viz-platform | viz-platform | DMC registry |

docs/CANONICAL-PATHS.md

@@ -261,9 +261,11 @@ MCP servers are **shared at repository root** and configured in `.mcp.json`.
 |---------|---------|---------|
 | MCP configuration | `.mcp.json` | `.mcp.json` (at repo root) |
 | Shared MCP server | `mcp-servers/{server}/` | `mcp-servers/gitea/` |
-| MCP server code | `mcp-servers/{server}/mcp_server/` | `mcp-servers/gitea/mcp_server/` |
+| MCP server code | `mcp-servers/{server}/mcp_server/` | `mcp-servers/netbox/mcp_server/` |
 | MCP venv (local) | `mcp-servers/{server}/.venv/` | `mcp-servers/gitea/.venv/` |
 
+**Note:** `mcp-servers/gitea/` is a thin wrapper — source code is in the published `gitea-mcp` package (Gitea PyPI). Other MCP servers still have local source code.
+
 **Note:** Plugins do NOT have their own `mcp-servers/` directories. All MCP servers are shared at root and configured via `.mcp.json`.
 
 ### MCP Venv Paths - CRITICAL