chore: remove fallow tooling and fix Import-LibModule scoping

- Remove .fallowrc.json, .fallowignore, .fallow/ cache — fallow is a
  JS/TS-only tool; this project has no JS/TS source files
- Remove fallow devDependency from package.json and run pnpm install
  to drop it from pnpm-lock.yaml
- Remove all fallow:* npm scripts from package.json
- Remove all fallow-* tasks from Taskfile.yml
- Clear .mcp.json fallow MCP server entry

- Delete dead code: profile.d/dev-tools-modules/api/api-tools.ps1
  (incomplete WIP copy of profile.d/api-tools.ps1, never loaded by
  any fragment or module registry)

- Fix ConvertToJsonObject duplication in sexpr.ps1: extract shared
  helper as _ConvertSexprItemToJson global function; both
  _ConvertFrom-SexprToJson and _ConvertFrom-SexprToYaml now call it

- Fix systemic Import-LibModule scoping bug: add -Global flag to all
  Import-LibModule calls in 57 .ps1 scripts under scripts/. Without
  -Global, imported modules stayed in the calling module's scope and
  their functions (Write-ScriptMessage, Exit-WithCode, etc.) were
  silently unavailable to script code

- Rewrite find-duplicate-functions.ps1: replace broken Invoke-Parallel
  (Start-Job runspaces lack lib module access) with a direct sequential
  scan using [System.IO.File]::ReadAllText; also fixes function regex
  to skip global: scope qualifier to avoid false positives

Author: bolens

.fallowignore

@@ -1,8 +1,3 @@
 {
-  "mcpServers": {
-    "fallow": {
-      "command": "node_modules/.bin/fallow-mcp",
-      "description": "Fallow codebase intelligence: dead-code detection, duplication, complexity, circular deps for JS/TS files in this project"
-    }
-  }
+  "mcpServers": {}
 }

.fallowrc.json

@@ -301,46 +301,6 @@ tasks:
     cmds:
       - pwsh -NoProfile -File scripts/utils/task-parity/check-task-parity.ps1 -Generate {{.CLI_ARGS}}
 
-  fallow:
-    desc: Run fallow dead-code analysis on JS/TS files
-    cmds:
-      - fallow dead-code
-
-  fallow-duplication:
-    desc: Run fallow code duplication analysis
-    cmds:
-      - fallow dupes
-
-  fallow-complexity:
-    desc: Run fallow health/complexity analysis
-    cmds:
-      - fallow health
-
-  fallow-circular:
-    desc: Run fallow circular-dependency / dead-code analysis
-    cmds:
-      - fallow dead-code
-
-  fallow-all:
-    desc: Run all fallow analyses combined (dead-code + dupes + health)
-    cmds:
-      - fallow
-
-  fallow-audit:
-    desc: Review changed files for dead code, complexity, and duplication
-    cmds:
-      - fallow audit
-
-  fallow-watch:
-    desc: Re-run fallow analysis as files change
-    cmds:
-      - fallow watch
-
-  fallow-mcp:
-    desc: Start fallow MCP server (for AI assistant integration)
-    cmds:
-      - node_modules/.bin/fallow-mcp
-
   drift-check:
     desc: Check that all doc-to-code bindings are current (drift)
     cmds:

.mcp.json

@@ -71,14 +71,6 @@
     "dev-setup": "pwsh -NoProfile -File scripts/dev/setup.ps1",
     "check-task-parity": "pwsh -NoProfile -File scripts/utils/task-parity/check-task-parity.ps1",
     "generate-task-parity": "pwsh -NoProfile -File scripts/utils/task-parity/check-task-parity.ps1 -Generate",
-    "fallow": "fallow dead-code",
-    "fallow:duplication": "fallow dupes",
-    "fallow:complexity": "fallow health",
-    "fallow:circular": "fallow dead-code",
-    "fallow:all": "fallow",
-    "fallow:audit": "fallow audit",
-    "fallow:watch": "fallow watch",
-    "fallow:mcp": "node_modules/.bin/fallow-mcp",
     "drift:check": "drift check",
     "drift:update": "drift update"
   },
@@ -121,7 +113,6 @@
     "@cspell/dict-python": "^4.2.26",
     "@cspell/dict-software-terms": "^5.2.2",
     "cspell": "^10.0.0",
-    "fallow": "^2.83.0",
     "markdownlint-cli": "^0.48.0"
   }
 }

Taskfile.yml

@@ -21,6 +21,20 @@
     Reference: https://en.wikipedia.org/wiki/S-expression
 #>
 function Initialize-FileConversion-Sexpr {
+    # Shared helper: convert a parsed S-expression tree node to a JSON-serialisable value.
+    # Defined once here as a Global function so both _ConvertFrom-SexprToJson and
+    # _ConvertFrom-SexprToYaml can use it without duplicating the body.
+    Set-Item -Path Function:Global:_ConvertSexprItemToJson -Value {
+        param($Item)
+        if ($null -eq $Item) { return $null }
+        if ($Item -is [System.Collections.IList] -or $Item -is [System.Array]) {
+            $result = @()
+            foreach ($subItem in $Item) { $result += & $_ConvertSexprItemToJson $subItem }
+            return $result
+        }
+        return $Item
+    } -Force
+
     # Helper function to parse S-Expression
     Set-Item -Path Function:Global:_Parse-Sexpr -Value {
         param([string]$SexprContent)
@@ -243,23 +257,7 @@ function Initialize-FileConversion-Sexpr {
             $sexprContent = Get-Content -LiteralPath $InputPath -Raw
             $parsed = _Parse-Sexpr -SexprContent $sexprContent
 
-            # Convert parsed structure to JSON
-            function ConvertToJsonObject {
-                param($Item)
-                if ($null -eq $Item) {
-                    return $null
-                }
-                if ($Item -is [System.Collections.IList] -or $Item -is [System.Array]) {
-                    $result = @()
-                    foreach ($subItem in $Item) {
-                        $result += ConvertToJsonObject -Item $subItem
-                    }
-                    return $result
-                }
-                return $Item
-            }
-            
-            $jsonObj = ConvertToJsonObject -Item $parsed
+            $jsonObj = & $Function:_ConvertSexprItemToJson $parsed
             $json = $jsonObj | ConvertTo-Json -Depth 100
             Set-Content -LiteralPath $OutputPath -Value $json -Encoding UTF8
         }
@@ -297,22 +295,7 @@ function Initialize-FileConversion-Sexpr {
             $parsed = _Parse-Sexpr -SexprContent $sexprContent
 
             # Convert to JSON first, then to YAML (simple approach)
-            function ConvertToJsonObject {
-                param($Item)
-                if ($null -eq $Item) {
-                    return $null
-                }
-                if ($Item -is [System.Collections.IList] -or $Item -is [System.Array]) {
-                    $result = @()
-                    foreach ($subItem in $Item) {
-                        $result += ConvertToJsonObject -Item $subItem
-                    }
-                    return $result
-                }
-                return $Item
-            }
-            
-            $jsonObj = ConvertToJsonObject -Item $parsed
+            $jsonObj = & $Function:_ConvertSexprItemToJson $parsed
             $json = $jsonObj | ConvertTo-Json -Depth 100
             $yamlObj = $json | ConvertFrom-Json
             $yaml = $yamlObj | ConvertTo-Yaml -ErrorAction SilentlyContinue