Add 5 MCP tools, refactor nav-data, fix deep path bug, fix Playwright failures

Nav refactoring:
- Split nav-data.sx (32 forms) into 6 files: nav-geography, nav-language,
  nav-applications, nav-etc, nav-tools, nav-tree
- Add Tools top-level nav category with SX Tools and Services pages
- New services-tools.sx page documenting the rose-ash-services MCP server

JS build fixes (fixes 5 Playwright failures):
- Wire web/web-signals.sx into JS build (stores, events, resources)
- Add cek-try primitive to JS platform (island hydration error handling)
- Merge PRIMITIVES into getRenderEnv (island env was missing primitives)
- Rename web/signals.sx → web/web-signals.sx to avoid spec/ collision

New MCP tools:
- sx_trace: step-through CEK evaluation showing lookups, calls, returns
- sx_deps: dependency analysis — free symbols + cross-file resolution
- sx_build_manifest: show build contents for JS and OCaml targets
- sx_harness_eval extended: multi-file loading + setup expressions

Deep path bug fix:
- Native OCaml list-replace and navigate bypass CEK callback chain
- Fixes sx_replace_node and sx_read_subtree corruption on paths 6+ deep

Tests: 1478/1478 JS full suite, 91/91 Playwright

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

sx/sx/nav-geography.sx

@@ -0,0 +1,16 @@
+;; Navigation items for the Geography section
+
+(define reference-nav-items (list (dict :label "Attributes" :href "/sx/(geography.(hypermedia.(reference.attributes)))") (dict :label "Headers" :href "/sx/(geography.(hypermedia.(reference.headers)))") (dict :label "Events" :href "/sx/(geography.(hypermedia.(reference.events)))") (dict :label "JS API" :href "/sx/(geography.(hypermedia.(reference.js-api)))")))
+
+(define examples-nav-items (list (dict :label "Click to Load" :href "/sx/(geography.(hypermedia.(example.click-to-load)))") (dict :label "Form Submission" :href "/sx/(geography.(hypermedia.(example.form-submission)))") (dict :label "Polling" :href "/sx/(geography.(hypermedia.(example.polling)))") (dict :label "Delete Row" :href "/sx/(geography.(hypermedia.(example.delete-row)))") (dict :label "Inline Edit" :href "/sx/(geography.(hypermedia.(example.inline-edit)))") (dict :label "OOB Swaps" :href "/sx/(geography.(hypermedia.(example.oob-swaps)))") (dict :label "Lazy Loading" :href "/sx/(geography.(hypermedia.(example.lazy-loading)))") (dict :label "Infinite Scroll" :href "/sx/(geography.(hypermedia.(example.infinite-scroll)))") (dict :label "Progress Bar" :href "/sx/(geography.(hypermedia.(example.progress-bar)))") (dict :label "Active Search" :href "/sx/(geography.(hypermedia.(example.active-search)))") (dict :label "Inline Validation" :href "/sx/(geography.(hypermedia.(example.inline-validation)))") (dict :label "Value Select" :href "/sx/(geography.(hypermedia.(example.value-select)))") (dict :label "Reset on Submit" :href "/sx/(geography.(hypermedia.(example.reset-on-submit)))") (dict :label "Edit Row" :href "/sx/(geography.(hypermedia.(example.edit-row)))") (dict :label "Bulk Update" :href "/sx/(geography.(hypermedia.(example.bulk-update)))") (dict :label "Swap Positions" :href "/sx/(geography.(hypermedia.(example.swap-positions)))") (dict :label "Select Filter" :href "/sx/(geography.(hypermedia.(example.select-filter)))") (dict :label "Tabs" :href "/sx/(geography.(hypermedia.(example.tabs)))") (dict :label "Animations" :href "/sx/(geography.(hypermedia.(example.animations)))") (dict :label "Dialogs" :href "/sx/(geography.(hypermedia.(example.dialogs)))") (dict :label "Keyboard Shortcuts" :href "/sx/(geography.(hypermedia.(example.keyboard-shortcuts)))") (dict :label "PUT / PATCH" :href "/sx/(geography.(hypermedia.(example.put-patch)))") (dict :label "JSON Encoding" :href "/sx/(geography.(hypermedia.(example.json-encoding)))") (dict :label "Vals & Headers" :href "/sx/(geography.(hypermedia.(example.vals-and-headers)))") (dict :label "Loading States" :href "/sx/(geography.(hypermedia.(example.loading-states)))") (dict :label "Request Abort" :href "/sx/(geography.(hypermedia.(example.sync-replace)))") (dict :label "Retry" :href "/sx/(geography.(hypermedia.(example.retry)))")))
+
+(define isomorphism-nav-items (list (dict :label "Roadmap" :href "/sx/(geography.(isomorphism))") (dict :label "Bundle Analyzer" :href "/sx/(geography.(isomorphism.bundle-analyzer))") (dict :label "Routing Analyzer" :href "/sx/(geography.(isomorphism.routing-analyzer))") (dict :label "Data Test" :href "/sx/(geography.(isomorphism.data-test))") (dict :label "Async IO" :href "/sx/(geography.(isomorphism.async-io))") (dict :label "Streaming" :href "/sx/(geography.(isomorphism.streaming))") (dict :label "Affinity" :href "/sx/(geography.(isomorphism.affinity))") (dict :label "Optimistic" :href "/sx/(geography.(isomorphism.optimistic))") (dict :label "Offline" :href "/sx/(geography.(isomorphism.offline))")))
+
+(define cek-nav-items (list (dict :label "Overview" :href "/sx/(geography.(cek))" :summary "The CEK machine — explicit evaluator with Control, Environment, Kontinuation. Three registers, pure step function.") (dict :label "Demo" :href "/sx/(geography.(cek.demo))" :summary "Live islands evaluated by the CEK machine. Counter, computed chains, reactive attributes — all through explicit continuation frames.") (dict :label "Freeze / Thaw" :href "/sx/(geography.(cek.freeze))" :summary "Serialize a CEK state to s-expressions. Ship it, store it, content-address it. Thaw and resume anywhere.") (dict :label "Content Addressing" :href "/sx/(geography.(cek.content))" :summary "Hash frozen state to a CID. Same state = same address. Store, share, verify, reproduce.")))
+
+(define reactive-examples-nav-items (list {:href "/sx/(geography.(reactive.(examples.counter)))" :label "Counter"} {:href "/sx/(geography.(reactive.(examples.temperature)))" :label "Temperature"} {:href "/sx/(geography.(reactive.(examples.stopwatch)))" :label "Stopwatch"} {:href "/sx/(geography.(reactive.(examples.imperative)))" :label "Imperative"} {:href "/sx/(geography.(reactive.(examples.reactive-list)))" :label "Reactive List"} {:href "/sx/(geography.(reactive.(examples.input-binding)))" :label "Input Binding"} {:href "/sx/(geography.(reactive.(examples.portal)))" :label "Portals"} {:href "/sx/(geography.(reactive.(examples.error-boundary)))" :label "Error Boundary"} {:href "/sx/(geography.(reactive.(examples.refs)))" :label "Refs"} {:href "/sx/(geography.(reactive.(examples.dynamic-class)))" :label "Dynamic Class"} {:href "/sx/(geography.(reactive.(examples.resource)))" :label "Resource"} {:href "/sx/(geography.(reactive.(examples.transition)))" :label "Transitions"} {:href "/sx/(geography.(reactive.(examples.stores)))" :label "Stores"} {:href "/sx/(geography.(reactive.(examples.event-bridge-demo)))" :label "Event Bridge"} {:href "/sx/(geography.(reactive.(examples.defisland)))" :label "defisland"} {:href "/sx/(geography.(reactive.(examples.tests)))" :label "Tests"} {:href "/sx/(geography.(reactive.(examples.coverage)))" :label "Coverage"} {:href "/sx/(geography.(reactive.(examples.cyst)))" :label "Cyst"} {:href "/sx/(geography.(reactive.(examples.reactive-expressions)))" :label "Reactive Expressions"}))
+
+(define reactive-islands-nav-items (list (dict :label "Examples" :href "/sx/(geography.(reactive.(examples)))" :summary "Live interactive islands — click the buttons, type in the inputs." :children reactive-examples-nav-items)))
+
+(define marshes-examples-nav-items (list {:href "/sx/(geography.(marshes.hypermedia-feeds))" :label "Hypermedia Feeds State"} {:href "/sx/(geography.(marshes.server-signals))" :label "Server Writes to Signals"} {:href "/sx/(geography.(marshes.on-settle))" :label "sx-on-settle"} {:href "/sx/(geography.(marshes.signal-triggers))" :label "Signal-Bound Triggers"} {:href "/sx/(geography.(marshes.view-transform))" :label "Reactive View Transform"}))
+