Merge main into staging: resolve conflicts keeping V3.0.1 documentation

Merge pull request #13 from g0dnerd/fix-container-build-script

Update CHANGELOG: documentation overhaul, bug fixes, issue closures

Fix hostname -I portability (issue #6), add Lens training docs (issue #11)

Move ablation studies, status docs, migration guide into docs/reports/

Rewrite TROUBLESHOOTING.md: quick diagnostics, verified claims, 20+ issue scenarios with fixes

Fix K3s manifest path: k8s/manifests/ -> manifests/ (verified against generate-manifests.sh)

Rewrite SETUP.md: verified build steps, first-run guide, logs/update/sizing sections, K3s vs Docker comparison

Rewrite MAP.md: every file in repo with clickable tree, 18 description tables, 150 file links

Rewrite CONFIGURATION.md: every env var verified against source, add sandbox/CLI/Aider/K3s sections

Fix geometric-lens port mismatch (8001->8099), fix stale references in CONTRIBUTING.md

CLI.md: add diagrams, workflow examples, troubleshooting, restore missing Aider config files

Add CLI screenshot to CLI.md header

Rewrite CLI.md: add env vars, config files, REPL commands, streaming format, health checks

Fix sequence diagram: /embedding -> /v1/embeddings to match actual code