shell: fish functions -> ~/.local/bin executables + bash/zsh ports; manage ~/.agents

- 16 cross-shell utilities converted to sh/bash chezmoi executables:
  ai c2p cp-appid extract_agents fab gdc gh-sonr-org-migrate ghg-clone
  ghn gho git-summary launch_omp_livediff_overlay lc-elir mdcp mdp pj
  (ghg-clone not named ghg: unrelated cargo binary owns that name)
- cwd/history helpers stay per-shell: yy c cd clip-last + ghg/ghn/gho
  cd-wrappers in bash/functions/ and zsh/functions/, loaded by rc files
- fish keeps only shell-state functions; converted ones now hit PATH
- cp-appid ignore gating moved to .local/bin path
- dot_agents/skills: 82 skills materialized from dotstate storage so
  dot_claude skill symlinks resolve on fresh bootstrap; dotstate
  profile/symlinks.json released .agents/skills .bashrc .zshrc

dot_agents/skills/linear-cli/references/api.md

@@ -0,0 +1,23 @@
+# api
+
+> Make a raw GraphQL API request
+
+## Usage
+
+```
+Usage:   linear api [query]
+
+Description:
+
+  Make a raw GraphQL API request
+
+Options:
+
+  -h, --help                    - Show this help.                                                                  
+  --workspace       <slug>      - Target workspace (uses credentials)                                              
+  --variable        <variable>  - Variable in key=value format (coerces booleans, numbers, null; @file reads from  
+                                  path)                                                                            
+  --variables-json  <json>      - JSON object of variables (merged with --variable, which takes precedence)        
+  --paginate                    - Auto-paginate a single connection field using cursor pagination                  
+  --silent                      - Suppress response output (exit code still reflects errors)
+```