refactor: modular .bashrc.d/ structure

- Rewrite .bashrc as minimal loader (34 lines → loads .bashrc.d/*.sh)
- Clean .bash_profile: single source, Apple Silicon/Intel brew path
- Add .bashrc.d/ with 7 topic modules:
    00_env.sh      PS1, OSTYPE, colors, pyenv
    10_aliases.sh  universal aliases
    20_functions.sh proxy, dbash, git helpers
    30_work.sh     work-host detection, LDAP, AWX, Juniper tools
                   (+ unified-hub-login with env-var creds)
    40_k8s.sh      kubectl completion + aliases
    50_ai_env.sh   WORKSPACE/DATA_ROOT/MODEL_ROOT paths
    60_dotfiles.sh dotfiles manager aliases, zet shortcuts
- Secrets (SN_PASSWORD, LDAP bind PWs, Unified Hub token) moved
  to ~/.bashrc.local (gitignored, written by setup script)
- Update .dotfiles_manifest to track .bashrc.d directory

.bashrc.d/10_aliases.sh

@@ -0,0 +1,33 @@
+#!/usr/bin/env bash
+# 10_aliases.sh — Universal aliases, safe on all machines and profiles
+# ============================================================================
+
+# Navigation / file listing
+alias l='less'
+alias t='tail -f'
+alias la='ls -a'
+alias lf='ls -FA'
+alias ll='ls -lAh | more'
+alias lt='ls -tlAh | more'
+alias a='alias'
+alias h='history 25'
+
+# Screen
+alias sl='screen -list'
+alias sr='screen -r'
+
+# Process inspection
+alias psg='pstree | grep'
+alias ps-m='ps aux --sort -rss'
+
+# Docker — short forms
+alias d='docker'
+alias di='docker images'
+alias dp='docker ps'
+alias dr='docker run'
+alias db='docker build'
+
+# Git helpers
+alias giturl='git config --get remote.origin.url'
+alias gitresetpw='git config --global credential.helper osxkeychain'
+alias git-clean='git-prune-branches'