docs(limits): describe how to design admission recovery (#6368)

* fix(reconstruction): dedupe residual unknown ids with uniqueSorted

Merged obligation candidates called uniqueBy, which is not defined, so
the project did not typecheck. String ids already use uniqueSorted.

Co-authored-by: morluto <morluto@users.noreply.github.com>

* docs(limits): describe how to design admission recovery

Add a short contributor guide for named defaults, settings, recovery
text, and the agent recovery ladder, and mirror that ladder into the
authored skill.

Co-authored-by: morluto <morluto@users.noreply.github.com>

* fix(hopper): pass distribution readers into install-host tests

systemLinuxHopperInstallHost now requires the caller's distribution
reader. The Linux install tests still passed only the environment, so
typecheck failed.

Co-authored-by: morluto <morluto@users.noreply.github.com>

* docs(limits): name the parser doctor shares with startup

Co-authored-by: morluto <morluto@users.noreply.github.com>

* test: align pcap, storage, and regex fixtures with current contracts

Source and portable CI failed on fixtures that still described the
previous pcap client identity, legacy storage fingerprints, and the
old regex deadline sentence.

Co-authored-by: morluto <morluto@users.noreply.github.com>

* docs: link repository experiments outside the built site

---------

Co-authored-by: Cursor Agent <cursoragent@cursor.com>
Co-authored-by: morluto <morluto@users.noreply.github.com>

docs/index.md

@@ -62,7 +62,8 @@ For runtime instrumentation, see the [Frida guide](./frida-instrumentation.md).
 | Use CLI/MCP and retain evidence                     | [CLI](cli.md), [MCP contracts](mcp-contracts.md), [agent prompts](mcp-prompts.md), [obligation ledgers](reconstruction-obligation-ledgers.md)                                                                                                                                                                                                                                                                                                  |
 
 For development, use [testing](testing.md), [client verification](client-verification.md),
-[tool design](tool-design.md), and [releasing](releasing.md).
+[tool design](tool-design.md), [admission limits and recovery](design/limits-and-recovery.md),
+and [releasing](releasing.md).
 [Reconstruction readiness](reconstruction-readiness.md) describes a development
 conformance verifier. [The 6.2 migration](migration-6.2.md) records that release's
 compatibility changes; [the roadmap](roadmap.md) tracks future work.